Question

Wksn day 7AlgebraName1. If f(x) = 2x - 4, find each valuea)b) f(x) = 9

Answer 1

$f(x)=2x-4$

To find the value of x when f(x) = 9 we use the formula of the equation and we equal 9 to be able to find the x, as follow:

$2x-4=9$$2x=9+4$$2x=13$$x=\frac{13}{2}=6.5$