Use the function fx x 6 to answer the following questions

Use the function f(x) = x + 6 to answer the following questions Evaluate f(-9): f(-9) = Determine x when f(x) = 10 x =

Solution

Given function f(x) = x+6

1) Need to find f(-9).

f(x) = x+6

Substitute x=-9 in f(x)

f(-9) = -9+6

= -3

Therefore, f(-9) = -3.

2) Given f(x) = 10

Need to find x.

f(x) = x+6

10 = x+6

10 - 6 = x

4 = x

x=4

Therefore, x=4.