Ace That College Math CLEP Test 2026 – Crunch Numbers and Conquer!

A is incorrect because it is the equation of a parallel line, not a perpendicular line. The slope of the given line is -4 and the perpendicular line's slope should be the negative reciprocal, which is 1/4. Therefore, the correct equation would not have the same slope as the given line.

B and C are both incorrect because they have the same slope as the given line, and as stated before, the perpendicular line's slope should be the negative reciprocal.

The correct equation is D because the given point (3,9) satisfies the equation when substituted. Additionally, the slope (-4) multiplied by the slope of the perpendicular line (1/4) gives a product of -1, as it should for two perpendicular lines.