mrscoollizbeth mrscoollizbeth
  • 08-01-2021
  • Mathematics
contestada

f(x)=-3x²+2x-5
What is f(-1)?​

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Podetola
Podetola Podetola
  • 08-01-2021

Answer: f (-1) = 9

Step-by-step explanation:

You just have to substitute -1 for x

f (-1) = -3 (-1)^2 + 2 (-1) - 5

f (-1) = 3^2 + -2 - 5

f (-1) = 9 - 7

f (-1) = 2

I think I'm correct so I hope this helped!

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underme
underme underme
  • 08-01-2021

[tex]f(-1)=-3.(-1)^{2} +2.(-1)-5\\=\\-3.1+(-2)-5\\-3+(-2)-5\\-5-5=-10[/tex]

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