Problem 1ED: (A) As noted earlier, (4,3) is a solution of the equation 3x2y=6 Find three more solutions of this... Problem 2ED: (A) Graph y=x+b for b=5,3,0,3 and 5 simultaneously in the same coordinate system. Verbally describe... Problem 1MP: Graph:4x3y=12 Problem 2MP: Graph 4x-3y=12 on a graphing calculator and find the intercepts. Problem 3MP: (A) Graph x=5andy=3 simultaneously in the same rectangular coordinate system. (B) Write the... Problem 4MP: Find the slope of the line through each pair of points. (A) (2,4),(3,4) (B) (2,4),(0,4) (C)... Problem 5MP: Write the equation of the line with slope 12 and y intercept 1. Graph. Problem 6MP: (A) Find an equation for the line that has slope 23 and passes through 6,2. Write the resulting... Problem 7MP: Answer parts (A) and (B) in Example 7 for fixed costs of $250 per day and total costs of $3,450 per... Problem 8MP: At a price of $12.59 per box of grapefruit, the supply is 595,000 boxes and the demand is 650,000... Problem 1E: \ Problems 1-4 refer to graphs (A)-(D). Identify the graph(s) of lines with a negative slope. Problem 2E: Problems 1-4 refer to graphs (A)-(D). Identify the graph(s) of lines with a positive slope. Problem 3E: Problems 1-4 refer to graphs (A)-(D). Identify the graph(s) of any lines with slope zero. Problem 4E: Problems 1-4 refer to graphs (A)-(D). Identify the graph(s) of any lines with undefined slope. Problem 5E: In Problems 5-8, sketch a graph of each equation in a rectangular coordinate system. y=2x3 Problem 6E: In Problems 5-8, sketch a graph of each equation in a rectangular coordinate system. y=x2+1 Problem 7E: In Problems 5-8, sketch a graph of each equation in a rectangular coordinate system. 2x+3y=12 Problem 8E: In Problems 5-8, sketch a graph of each equation in a rectangular coordinate system. 8x3y=24 Problem 9E: In Problems 9-14, find the slope and y intercept of the graph of each equation y=5x7 Problem 10E: In Problems 9-14, find the slope and y intercept of the graph of each equation. y=3x+2 Problem 11E: In Problems 9-14, find the slope and y intercept of the graph of each equation. y=52x9 Problem 12E: In Problems 9-14, find the slope and y intercept of the graph of each equation. y=103x+4 Problem 13E: In Problems 9-14, find the slope and y intercept of the graph of each equation. y=x4+23 Problem 14E: In Problems 9-14, find the slope and y intercept of the graph of each equation. y=x512 Problem 15E: In Problems 15-20, find the slope and x intercept of the graph of each equation. y=2x+10 Problem 16E: In Problems 15-20, find the slope and x intercept of the graph of each equation. y=4x+12 Problem 17E: In Problems 15-20, find the slope and x intercept of the graph of each equation. 8xy=40 Problem 18E: In Problems 15-20, find the slope and x intercept of the graph of each equation. 3x+y=6 Problem 19E: In Problems 15-20, find the slope and x intercept of the graph of each equation. 6x+7y=42 Problem 20E: In Problems 15-20, find the slope and x intercept of the graph of each equation. 9x+2y=4 Problem 21E: In Problems 21-24, write an equation of the line with the indicated slope and y intercept. Slope= 2... Problem 22E: In Problems 21-24, write an equation of the line with the indicated slope and y intercept. Slope = ... Problem 23E: In Problems 21-24, write an equation of the line with the indicated slope and y intercept. Slope=13... Problem 24E: In Problems 21-24, write an equation of the line with the indicated slope and y intercept. Slope= 67... Problem 25E: In Problems 25-28, use the graph of each line to find the x intercept, y intercept, and slope. Write... Problem 26E: In Problems 25-28, use the graph of each line to find the x intercept, y intercept, and slope. Write... Problem 27E: In Problems 25-28, use the graph of each line to find the x intercept, y intercept, and slope. Write... Problem 28E: In Problems 25-28, use the graph of each line to find the x intercept, y intercept, and slope. Write... Problem 29E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 30E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 31E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 32E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 33E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 34E: In Problems 29-34, sketch a graph of each equation or pair of equations in a rectangular coordinate... Problem 35E: In Problems 35-40, find the slope of the graph of each equation. 4x+y=3 Problem 36E: In Problems 35-40, find the slope of the graph of each equation. 5xy=2 Problem 37E: In Problems 35-40, find the slope of the graph of each equation. 3x+5y=15 Problem 38E: In Problems 35-40, find the slope of the graph of each equation. 2x3y=18 Problem 39E: In Problems 35-40, find the slope of the graph of each equation. 4x+2y=9 Problem 40E: In Problems 35-40, find the slope of the graph of each equation. x+8y=4 Problem 41E: Given Ax+By=12, graph each of the following three cases in the same coordinate system. (A) A=2andB=0... Problem 42E: Given Ax+By=24, graph each of the following three cases in the same coordinate system. (A) A=6andB=0... Problem 43E: Graph y=25x+200,x0. Problem 44E: Graph y=40x+160,x0. Problem 45E: (A) Graph y=1.2x4.2 in a rectangular coordinate system. (B) Find the x and y intercepts... Problem 46E: (A) Graph y=0.8x+5.2 in a rectangular coordinate system. (B) Find the x and y intercepts... Problem 47E: In Problems 47-50, write the equations of the vertical and horizontal lines through each point. 4,3 Problem 48E: In Problems 47-50, write the equations of the vertical and horizontal lines through each point. 5,6 Problem 49E: In Problems 47-50, write the equations of the vertical and horizontal lines through each point.... Problem 50E: In Problems 47-50, write the equations of the vertical and horizontal lines through each point.... Problem 51E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 52E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 53E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 54E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 55E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 56E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 57E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 58E: In Problems 51-58, write the slope-intercept form of the equation of the line with the indicated... Problem 59E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 60E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 61E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 62E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 63E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 64E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 65E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 66E: In Problems 59-66, (A) Find the slope of the line that passes through the given points. (B) Find the... Problem 67E: Discuss the relationship among the graphs of the lines with equation y=mx+2, where m is any real... Problem 68E: Discuss the relationship among the graphs of the lines with equation y=0.5x+b, where b is any real... Problem 69E: Cost analysis. A donut shop has a fixed cost of $124 per day and a variable cost of $0.12 per donut.... Problem 70E: Cost analysis. A small company manufactures picnic tables. The weekly fixed cost is $1,200 and the... Problem 71E: Cost analysis. A plant can manufacture 80 golf clubs per day for a total daily cost of 7,647 and 100... Problem 72E: Cost analysis. A plant can manufacture 50 tennis rackets per day for a total daily cost of $3,855... Problem 73E: Business-Markup policy. A drugstore sells a drug costing $85 for $112 and a drug costing $175 for... Problem 74E: Business-Markup policy. A clothing store sells a shirt costing $20for$33 and a jacket costing $60... Problem 75E: Business-Depreciation. A farmer buys a new tractor for $157,000 and assumes that it will have a... Problem 76E: Business-Depreciation. A charter fishing company buys a new boat for $224,000 and assumes that it... Problem 77E: Boiling point. The temperature at which water starts to boil is called its boiling point and is... Problem 78E: Boiling point. The temperature at which water starts to boil is also linearly related to barometric... Problem 79E: Flight conditions. In stable air, the air temperature drops about 3.6F for each 1,000-foot rise in... Problem 80E: Flight navigation. The airspeed indicator on some aircraft is affected by the changes in atmospheric... Problem 81E: Demographics. The average number of persons per house-hold in the United States has been shrinking... Problem 82E: Demographics. The median household income divides the households into two groups: the half whose... Problem 83E: Cigarette smoking. The percentage of female cigarette smokers in the United States declined from... Problem 84E: Cigarette smoking. The percentage of male cigarette smokers in the United States declined from 25.7... Problem 85E: Supply and demand. At a price of $9.00 per bushel, the supply of soybeans is 3,600 million bushels... Problem 86E: Supply and demand. At a price of $3.20 per bushel, the supply of corn is 9,800 million bushels and... Problem 87E: Physics. Hooke’s law states that the relationship between the stretch s of a spring and the weight w... Problem 88E: Physics. The distance d between a fixed spring and the floor is a linear function of the weight w... format_list_bulleted