Ask Question
3 September, 09:55

What is the axis of symmetry of the function f (x) = - (x 9) (x - 21) ? the axis of symmetry is x = ?

+5
Answers (1)
  1. 3 September, 09:58
    0
    Hello,

    y = - (x+9) (x-21) = - (x²-12x-189) = - (x²-2*6x+36) + 189+36

    = - (x-6) ²+225

    Vertex: (6,225)

    Axis of symmetry: x=6
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “What is the axis of symmetry of the function f (x) = - (x 9) (x - 21) ? the axis of symmetry is x = ? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers