ottoberton601 ottoberton601
  • 04-01-2019
  • Mathematics
contestada

Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)?

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Padoru
Padoru Padoru
  • 04-01-2019

The quadratic equation is in factored form, which is f(x) = (x - a)(x - b), where a and b are the x-values for the x-intercepts.

The x-values for the x-intercepts are 4 and -2. We know that the y-value at any x-intercept must be 0 (otherwise it isn't an x-intercept).

Thus, either the points (4,0) or (-2,0) must be your answer (the question is only asking for one x-intercept).

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williamsaubree53 williamsaubree53
  • 08-04-2020

Answer:

(-2,0)

Step-by-step explanation:

Answer Link

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