Marissa11 Marissa11
  • 10-01-2015
  • Mathematics
contestada

A function f(x) s defined as f(x)=-8x^2. What is f(-3)?

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konrad509
konrad509 konrad509
  • 10-01-2015
[tex]f(-3)=-8\cdot(-3)^2\\ f(-3)=-8\cdot9\\ f(-3)=-72 [/tex]
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KelseyRebecca
KelseyRebecca KelseyRebecca
  • 10-01-2015
you substitute the x in the equation -8x^2 so it would be -8(-3)^2 so the answer would be -72
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