College Algebra CLEP Prep Practice Exam

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What is the slope of the line described by y = 4x - 3?

-3
-4
3
4

The correct answer is: 4

The slope of a line refers to the change in the y-values divided by the change in the x-values. In this equation, the coefficient of x is 4, which represents the change in y divided by the corresponding change in x. Therefore, the slope is 4. Option A, -3, is incorrect because it does not correspond to the coefficient of x in the equation. Option B, -4, is also incorrect because it does not correspond to the coefficient of x in the equation. Option C, 3, is incorrect because it represents the change in x divided by the change in y, which is the reciprocal of the slope. The correct option, D, represents the change in y divided by the change in x, which is 4 and is the slope of the line.