CPM Homework Banner

Home > CC3 > Chapter 2 > Lesson 2.1.5 > Problem 2-54

2-54.

Find the value of y, given value of x. Homework Help ✎

  1. y = 2 + 4.3x when x = −6

    Substitute −6 in for x.

    y = 2 + 4.3( −6 )

    Multiply and simplify.

    y = 2 + (−25.8)

    y = −23.8

  1. y = (x − 3)2 when x = 9

    Follow the steps in part (a).

    Remember to use the correct Order of Operations.

  1. y = x − 2 when x = 3.5

    Begin by substituting 3.5 for x in the equation.

  1. y = 5x − 4 when x = −2

    Rewrite the equation as y = 5(−2) − 4.

    −14