Chapter 1.1, Problem 7E

Find the slope of the line through the pair of points: (—3. 4) and (2, —1).

Cholesterol. The age, x, and LDL cholesterol level, y, of two men are given by the points (18,69) and (27,122) . Find a linear equation that models the relationship between age and LDL cholesterol level.

Find the distance between the point 3,2 and the line 3x+5y=2.

Write an equation of the line that passes through the given point and is perpendicular to the given line. Your answer should be written in slope-intercept form. P(2,5),4xy=7

Find the slope of the line: x = —4.

An accounting firm determines that the value V (in dollars) of a copier t years after its purchase is given by V=300t+1500. Interpret the y - intercept and slope of this line.