Porciabeauty9363 Porciabeauty9363
  • 15-11-2018
  • Mathematics
contestada

Which expression below gives the average rate of change of the function g(x) = -x2 - 4x on the interval 6 ≤ x ≤ 8 ?

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tramserran
tramserran tramserran
  • 15-11-2018

Answer: -18

Explanation:

Average rate of change is slope: [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex].  Need to find the y-coordinates:

g(x) = -x² - 4x

g(6) = -(6)² - 4(6)

      = -36 - 24

      = -60

⇒ (6, -60)

g(8) = -(8)² - 4(8)

      = -64 - 32

      = -96

⇒ (8, -96)

m = [tex]\frac{-96 - (-60)}{8 - 6}[/tex]

   = [tex]\frac{-36}{2}[/tex]

   = -18

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XzeinaK
XzeinaK XzeinaK
  • 30-09-2020

Answer:

Option A

Step-by-step explanation:

it's right on Odyssey ware.

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