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Danley264 Danley264
  • 20-05-2015
  • Mathematics
Answered

Which two points satisfy y = -x2 + 2x + 4 and x + y = 4?

Verified Answer :

darth666
darth666 darth666
  • 20-05-2015

\(y=-x^2+2x+4\) 
\(x+y=4\)
\(y=4-x\)
\(4-x=-x^2+2x+4\)
\(x^2-3x=0\)
\(x(x-3)=0\)
x=0 or x =3

for x = 0 y = 4
for x = 3 y = 1

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