Ask Question
21 October, 14:32

What is the vertex of the graph

y = - 2x² + 8x + 9?

+1
Answers (2)
  1. 21 October, 15:41
    0
    (2, 17)

    Step-by-step explanation:

    observe

    y = - 2x² + 8x - 8 + 17

    y = - 2 (x² - 4x + 4) + 17

    y = - 2 (x-2) ² + 17

    so, the vertex is (2, 17)
  2. 21 October, 15:52
    0
    Answer: (2, 17)

    Step-by-step explanation:

    The parabola params are: a = - 2, b = 8, and c = 9

    xv = - 8/2 (-2)

    so xv = 2

    yv = - 2 times 2^2+8 times 2+9

    therefore yv = 17
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What is the vertex of the graph y = - 2x² + 8x + 9? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers