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madeleinemcall
madeleinemcall madeleinemcall
  • 12-02-2015
  • Mathematics
Answered

Y=-x^2+2x+7

Y=2x+7

Can you please help me with this substitution for graphing

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 13-02-2015

so subsitute 2x+7 for y
2x+7=-x^2+2x+7
subtract 2x+7 from both sides
0=-x^2
obviously x=0
then subsitute
0 for x
y=2(0)+7
y=0+7
y=7

the answer is
x=0
y=7

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