Ask Question
18 December, 15:10

Determine whether the given function has a maximum or a minimum value. Then, find the maximum or minimum value of the function. f (x) = - 2x^2 + 10x + 6

a. The function has a minimum value. The minimum value of the function is - 31.5.

b. The function has a maximum value. The maximum value of the function is 18.5.

c. The function has a maximum value. The maximum value of the function is - 31.5.

d. The function has a minimum value. The minimum value of the function is 18.5.

+2
Answers (1)
  1. 18 December, 18:30
    0
    b. The function has a maximum value. The maximum value of the function is 18.5.

    Step-by-step explanation:

    Let's consider the equation of a parabola.

    f (x) = - 2x² + 10x + 6

    where,

    a: - 2

    b: 10

    c: + 6

    The sign of "a" determines the openness of the parabola. Since a < 0, the parabola is open downwards and has a maximum.

    We can find "x" of the vertex using the following expression.

    x (v) = - b/2a = - 10/2. (-2) = - 2.5

    We can find the "y" of the vertex by replacing this x in the equation

    y (v) = - 2. (2.5) ² + 10. (2.5) + 6 = 18.5

    The vertex (maximum) is (2.5, 18.5).
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Determine whether the given function has a maximum or a minimum value. Then, find the maximum or minimum value of the function. f (x) = - ...” 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