College Algebra CLEP Prep Practice Exam

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

-9
-7
7
9

The correct answer is: -9

When given the values of x = 3 and y = -4, you would plug these numbers into the expression and simplify it. This means you would replace the x with 3 and the y with -4 to get 4(3) + 3(-4). This simplifies to 12 - 12, which equals 0. Therefore, the correct answer is not B, C, or D. It is A, -9, the simplified expression when x = 3 and y = -4.