College Algebra CLEP Prep Practice Exam

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Prepare for the College Algebra CLEP Test with our comprehensive practice exam. Study with flashcards and multiple choice questions, each offering clues and detailed explanations. Achieve your best score and excel in your exam!

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What is the equation of the line perpendicular to y = -4x + 6 with a slope of 4?

y = -4x - 6
y = 4x - 10
y = 4x + 6
y = -4x + 10

The correct answer is: y = 4x + 6

A line perpendicular to y = -4x + 6 must have a slope that is the negative reciprocal of -4. The negative reciprocal of -4 is 1/4, so the equation of the perpendicular line would be y = 1/4x + b. In order for the slope to be 4, b must be 6. Therefore, the equation of the perpendicular line is y = 4x + 6.