Question

Evaluate the function

Answer 1

3 : - 13 , 4 : 12

Explanation:

3

to evaluate f(2) , substitute x = 2 into f(x)

f(x) = - 3x - 12 , then

f(2) = - 3(2) - 12 = - 6 - 12 = - 18

Then

f(2) + 5 = - 18 + 5 = - 13

4

to evaluate h(- 8) , substitute x = - 8 into h(x)

h(x) =
`(x)/(2)` + 19 , then

h(- 8) =
`(-8)/(2)` + 19 = - 4 + 19 = 15

Then

h(- 8) - 3 = 15 - 3 = 12