College Math CLEP Prep Practice Exam

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What type of equation describes a line in coordinate geometry?

Parabola
Exponential
Linear
Quadratic

The correct answer is: Linear

A linear equation describes a line in coordinate geometry because it has a constant rate of change, meaning it has a constant slope that determines how steep the line is. This is different from a parabola, which has a curved shape, an exponential function, which has a constantly increasing or decreasing rate of change, and a quadratic equation, which can also have a curved shape. Therefore, the other options are incorrect because they do not satisfy the criteria of having a constant slope and a straight line.