Question

-1•f(-9)+7•g(6)=

Answer 1

Answer:

D

Step-by-step explanation:

So we want to evaluate the expression:

$-1\cdot f(-9)+7\cdotg(6)$

First, let's figure out the value of f(-9) and g(6).

From the graph, we can see that a point on f(x) is (-9,4). In other words, f(-9)=4.

Also, a point on g(x) is (6,6). This means that g(6)=6.

Substitute:

$=-1\cdot(4)+7\cdot(6)$

Multiply:

$=-4+42$

Add:

$=38$

So the answer is D.

And we're done!