SOLUTION: what is y=-X2+2x+3

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Question 73415This question is from textbook Algebra 1
: what is y=-X2+2x+3 This question is from textbook Algebra 1

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If you're solving for x, then
0=-x%5E2%2B2x%2B3Let y=0 and factor out a -1
0=-%28x%5E2-2x-3%29Factors to
0=-%28x%2B1%29%28x-3%29Here's the product of factors
x%2B1=0Set each factor equal to zero
x=-1Here's one answer
x-3=0
x=3Here's another answer
graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x%5E2%2B2x%2B3%29
Hope that helps