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

2-54.

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

*y*= 2 + 4.3*x*when*x*= −6Substitute −6 in for

*x*.*y*= 2 + 4.3( −6 )Multiply and simplify.

*y*= 2 + (−25.8)*y*= −23.8

*y*= (*x*− 3)^{2}when*x*= 9Follow the steps in part (a).

Remember to use the correct Order of Operations.

*y*=*x*− 2 when*x*= 3.5Begin by substituting 3.5 for

*x*in the equation.

*y*= 5*x*− 4 when*x*= −2Rewrite the equation as

*y*= 5(−2) − 4.−14