1. A rectangle has side lengths of 3r2 + 5x - 1 and -7x +1. Which of the following expressions represents the area of the rectangle?

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. : )

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.