College Algebra CLEP Prep Practice Exam

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What is the value of f(x) when x = 5 from the equation f(x) = 2x - 3?

-8

To find the value of f(x) when x = 5, we need to substitute 5 in place of x in the given equation f(x) = 2x - 3.

Therefore, f(5) = 2(5) - 3 = 10 -3 = 7. This means that when x=5, the value of f(x) is 7.

Option A, -8, is incorrect because when we substitute x=5 in f(x) = 2x -3, we do not get -8.

Option B, 7, is the correct answer for when x=1, but not for when x=5.

Option D, -7, is also incorrect because when we substitute x=5 in f(x) = 2x -3, we do not get -7.

Therefore,

-7

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