College Algebra CLEP Prep Practice Exam

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What is the x-intercept of the line y = 3x - 1?

-3/1
-1/3
3/1
1/3

The correct answer is: 1/3

The x-intercept of a line is the point where the line crosses the x-axis, meaning that the y-coordinate is equal to 0. In this equation, the y-intercept is represented by the number -1. To find the x-intercept, we need to make y=0 and solve for x. So, 0 = 3x - 1. Add 1 to both sides to isolate x and we get x = 1/3, making option D the correct answer. Option A, -3/1, is incorrect because it represents the y-intercept instead of the x-intercept. Option B, -1/3, does not match the simplified form of the equation, which is y = mx + b. Option C, 3/1, while it is the inverse of the slope of the line, it also does not align