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  • 01-10-2018
  • Mathematics
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I'm Bad at functions. Any idea on what X stands for and what the answer is?

Im Bad at functions Any idea on what X stands for and what the answer is class=

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jimrgrant1 jimrgrant1
  • 02-10-2018

f(x) = x - 4 → H

to find the x- intercept of a function set f(x) = 0 and solve for x

(F) x² + 2x - 8 = 0

(x + 4 )(x - 2) = 0 ⇒ x = -4, x = 2 are the x-intercepts

(G) [tex]\frac{- 3x + 16}{4}[/tex] = 0 ⇒ x = [tex]\frac{16}{3}[/tex] is the x- intercept

(H) x - 4 = 0 ⇒ x = 4 is the x-intercept

(I) (x + 4)(x - 3) = 0 ⇒ x = - 4, x = 3 are the x-intercepts


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