Question

Evaluate each function. Be sure to show your substitutions.h(x) = 7x^2 - 4x-15h(20)

Answer 1

The function is given as,

`h(x)=7x^2-4x-15`

The objective is to determine the value h(20).

This can be obtained by substituting 20 for 'x' in the given expression,

`\begin{gathered} h(20)=7(20)^2-4(20)-15 \\ h(20)=7(400)-80-15 \\ h(20)=2800-95 \\ h(20)=2705 \end{gathered}`

Thus, the value of the given function h(20) is 2705.