Question

Evaluate function expression.
who can help ?

Answer 1

Given:

The graph of two function f(x) and g(x).

The expression is:

`-1\cdot f(-8)-4\cdot g(4)`

To find:

The value of the given expression.

Solution:

From the given graph, it is clear that

`f(-8)=-5`

`g(4)=3`

Substitution
`f(-8)=-5` and
`g(4)=3` in the given expression, we get

`-1\cdot (-5)-4\cdot 3`

`=5-12`

`=-7`

Therefore, the value of the given expression is -7.