Entry Exam Category: High School Equivalency Exams
Course: General Education Development (GED)
Exam: GED Math practice test

Practice Question

What is the slope of a line perpendicular to the line given by the equation 5x - 2y = -10?

Answer Choices

  • A: -0.4
  • B: 2\5
  • C: 5\2
  • D: -2.5

Correct Answer: B

Rationale: Convert: 5x - 2y = -10, y = (5/2)x + 5, slope = 5/2. Perpendicular slope = -1/(5/2) = -2/5. Thus, the correct answer is 2/5 (negative reciprocal).

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