College Math CLEP Prep Practice Exam

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What is the value of 3x + 2y if x=2 and y=-4?

6
-2
4
-10

The correct answer is: -10

To find the value of 3x + 2y, we plug in the given values of x=2 and y=-4 into the equation. Therefore, 3(2) + 2(-4) = 6 - 8 = -2. Option A is incorrect because it does not account for the negative sign in the equation. Similarly, option B is incorrect because it only accounts for the value of x and not y. Option C is incorrect because it does not consider the multiplication factor for both x and y. Therefore, the correct answer is -2 (not 6 as in option A.)