Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
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Exercise 15 Page 479

Substitute - 1,2, and 3 for x.

1/8, 8, 32

Practice makes perfect

We are given a function and asked to evaluate it for some given values. x=- 1, 2, 3This means that we should substitute 1, 2, and 3 for x in the given function and then evaluate. Let's start with - 1.

f(x) = 1/2 * 4^x
f(x) = 1/2 * 4^(- 1)
f(x) = 1/2 * 1/4
f(x) = 1/2 * 4
f(x) = 1/8

Now, let's do the same thing for the rest of the values.

x Evaluation Result
- 1 1/2 * 4^(- 1) 1/8
2 1/2 * 4^2 8
3 1/2 * 4^3 32