Do the ordered pairs in the table represent a linear function? 12 20 30 y -1 -1 -1 -1 -1 -1 Yes, because the rate of change is always -1. Yes, because the rate of change is constant. No, because the rate of change is not constant. No, because the y-values are constant. Submit

Which table of values represents a linear function? B -4 0. 7 -1 4 4 1 -4 -1 -6 -5 -2 -1 -3 -4 1 -3 4 -2 2] 3. 4. 2)

You will need to rent a computer and the cost will be $30 down and $15 a day. You sign a contract and you must pay the $30 down whether you rent the computer or not. Is this a linear function? Explain. What is the rate of change? What is the practical meaning (in context of the problem) of the rate of change? What is the vertical intercept? What is the practical meaning of the vertical intercept? Write the equation using function notation. What is the practical domain of the function? What is the practical range of the function?

The table below gives data from a linear function. Complete parts (a) and (b) below. (a) Fill in the first row of the table, assuming it represents a linear function. Fill in the last row, assuming the pattern for each column continues. Price per bottle, x Number of bottles (dollars) sold, y Number 0.8 40 1 38 1.2 36 Number Number (b) Write a formula which gives y as a function of x. y =