Entry Exam Category: High School Equivalency Exams
Course: General Education Development (GED)
Exam: GED Math practice test
Practice Question
What is the value of f(-3) for f(x) = 2x^2 + x + 1
Answer Choices
Correct Answer: -20
Rationale: Substitute x = -3 into f(x) = 2x^2 + x + 1: f(-3) = 2(-3)^2 + (-3) + 1 = 2(9) - 3 + 1 = 18 - 3 + 1 = 16 + 6 = 22. Thus, the correct answer is 22.