College Algebra CLEP Prep Practice Exam

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What is the x-intercept of the equation y = 3x + 4?

4
0
3
-4

The correct answer is: -4

The x-intercept of an equation is the point where the graph crosses the x-axis. In order to find this point, we need to set y = 0. Therefore, we will substitute 0 for y in the given equation. Solving for x, we get x = -4. This means that when y = 0, x = -4, making -4 the x-intercept. The other options may seem correct as they are all part of the equation, but they do not represent the actual x-intercept of the graph. Option A, 4, represents the y-intercept which is where the graph crosses the y-axis. Option B, 0, represents the coefficient of x which is not the same as the x-intercept. Option C, 3, represents the slope which is the rate of change of the equation, but it is not the x-inter