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=(13)/(2)=6.5`