The piecewise function describes a newspaper’s classified ad rates. y = {25 when x≤4
25 + 5 (x − 4) when x > 4

a) Interpret this piecewise function (describe in words what it means) (2 points)

Find the cost of a 3 line ad (2 points)

Find the difference in cost between a one and four line ad (2 points)

Find the cost of a seven line ad (2 points)

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )