Given the functions a(x) = 3x − 12 and b(x) = x − 9, find a[b(x)]. PLZ HELPPPPPPPPPP!!!! Question Given the functions a(x) = 3x − 12 and b(x) = x − 9, find a[b(x)]. PLZ HELPPPPPPPPPP!!!! in progress 0 Math Evelyn 2 weeks 2021-09-11T00:51:51+00:00 2021-09-11T00:51:51+00:00 2 Answers 0

## Answers ( )

Answer:

3x – 39

Step-by-step explanation:

a(b(x)) = 3b(x) – 12

= 3(x – 9) – 12

= 3x – 27 – 12

= 3x – 39

The value of is

Explanation:Given that the

functionsandWe need to determine the value of

The value of can be determined by substituting in the function

Thus, we have,

Let us substitute the value in the function

Substituting in the function , we get,

Multiplying the terms, we get,

Adding the like terms, we have,

Thus, the

value ofis