karyhern02 karyhern02
  • 13-07-2017
  • Mathematics
contestada

Consider the equation y=2x²+9x+1.

When x=-1, what is the value of y?

Enter your answer as a number, like this: 42

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apologiabiology
apologiabiology apologiabiology
  • 13-07-2017
sub -1 for x
remember pemdas
so

y=2(-1)²+9(-1)+1
y=2(1)-9+1
y=2-8
y=-6

the value of y is -6 when x=-1
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