Question

Evaluate the function.
f(x) = -3x2 + 3x + 7
Find f(8)

Answer 1

f(8) = -161

Explanation:

The question is asking us to evaluate the function.

In this problem, the function is:

`\large{\textsf{$ f(x) = -3x^2 + 3x + 7 $}`

Plug in 8 for x:

`\large\text{$ f(8) = -3(8)^2 + 3(8) + 7 $}`

Simplify.

`\large\text{$ f(8) = -3 * 64 + 24 + 7 $}`

`\large\text{$f(8) = -192 + 31 $}`

`\large\text{ f(8) = -161}`

Therefore, f(8) = -161.

Answer 2

f(8)=-161

Explanation:

f(x) = -3x^2 + 3x + 7

f(x) = -3x2 + 3x + 7

f(8)= -3(8)^(2) + 3(8) + 7= -192+24+7=-161