Let f(x) = 2x^2 - 2 and let g(x) = 5x + 1. Find the given value. f(g(-1)).

Question:

Let {eq}f(x) = 2x^2 - 2 {/eq} and let {eq}g(x) = 5x + 1 {/eq}. Find the given value.

{eq}f[ g(-1) ] {/eq}

Value of a Function:

A function is a relation from a set of input variables to a set of output variables.

In this problem, we need to find out the value of the given function at the given point.

Answer and Explanation:

We are given:

{eq}g(x) = 5x + 1 {/eq}

Plug in {eq}-1 {/eq}

{eq}g(-1) = -5+ 1 =-4 {/eq}

Next, we need to compute {eq}f[ g(-1) ] {/eq}

Plug in...

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from PSAT Prep: Tutoring Solution

Chapter 10 / Lesson 13
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