trivialove
trivialove trivialove
  • 03-09-2018
  • Mathematics
contestada

find all the x intercepts and y intercepts for the equation f(x) = 2x^2 - 16

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DoodleDingo
DoodleDingo DoodleDingo
  • 03-09-2018
To find y intercepts you have to solve for when x=0.
f(0)=2(0)^2-16
f(0)=0-16
f(0)= -16
y-intercept is (0,-16)
To find x intercepts you have to solve for when f(x)=0.
0=2x^2-16
16=2x^2
8=x^2
+or- 2sqrt(2)=x
X intercepts are (2sqrt(2),0) (-2sqrt(2),0)

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