College Algebra CLEP Prep Practice Exam

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If y = 3x + 6, then what is the value of y when x = -2?

-8
0
8
12

The correct answer is: -8

When x is equal to -2, the given equation can be rewritten as y = 3(-2) + 6 = -6 + 6 = 0. Therefore, the correct value of y when x = -2 is 0. The other options are incorrect because B: When x is equal to -2, the equation becomes y = 3(-2) + 6 = -6 + 6 = 0, not 0 + 6 = 6 as option B suggests. C: When x is equal to -2, the equation becomes y = 3(-2) + 6 = -6 + 6 = 0, not -6 + 6 = 12 as option C suggests. D: When x is equal to -2, the equation becomes y = 3(-2) +