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Suppose we have two functions: f(x)=x2+1 and g(x)=3x +5.Find the value of f(- 1)g(-1).

User DadaB
by
7.0k points

1 Answer

6 votes

ANSWER:

4

Explanation:

We have the following functions:


\begin{gathered} f\mleft(x\mright)=x^2+1 \\ g\mleft(x\mright)=3x+5 \end{gathered}

We calculate the value of the function when x is equal to -1:


\begin{gathered} f(-1)=-1^2+1=1+1=2 \\ g(-1)=3\cdot-1+5=-3+5=2 \\ \text{now,} \\ f(-1)\cdot g(-1)=2\cdot2=4 \\ f(-1)\cdot g(-1)=4 \end{gathered}

The value of the product of the two functions is equal to 4

User Dulon
by
7.4k points
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