Evaluate f(x) = -3x + 7 when x = 4.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the 8th Grade FAST Mathematics Pre-Algebra Test. Enhance your skills with interactive flashcards and multiple choice questions, each containing hints and explanations to boost your comprehension and readiness for the exam. Get ready to ace your test!

Multiple Choice

Evaluate f(x) = -3x + 7 when x = 4.

Explanation:
Evaluating a linear expression at a specific value means replacing the variable with that value and following the order of operations. For f(x) = -3x + 7, substitute x with 4: f(4) = -3(4) + 7. First multiply: -3 × 4 = -12. Then add 7: -12 + 7 = -5. So the function value at x = 4 is -5. This also aligns with the idea that as x increases, the line slopes downward (negative slope), and at x = 0 the value is 7, so at x = 4 it makes sense to be -5.

Evaluating a linear expression at a specific value means replacing the variable with that value and following the order of operations. For f(x) = -3x + 7, substitute x with 4: f(4) = -3(4) + 7. First multiply: -3 × 4 = -12. Then add 7: -12 + 7 = -5. So the function value at x = 4 is -5. This also aligns with the idea that as x increases, the line slopes downward (negative slope), and at x = 0 the value is 7, so at x = 4 it makes sense to be -5.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy