Question

Assume f(x)=-2x+8 and g(x)=3x. what is the value of (f+g)(-1)

Answer 1

The value would be 7.

Explanation:

Answer 2

`f\left( x \right) =-2x+8\\ \\ g\left( x \right)=3x`

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`f\left( x \right) +g\left( x \right) =-2x+8+3x=x+8`

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Therefore:


`\left( f+g \right) \left( -1 \right) =\left( -1 \right) +8=7`