SOLUTION: what is the x- intercept of this parabola y=-x^2+2x+3

Question 170708: what is the x- intercept of this parabola y=-x^2+2x+3
Found 2 solutions by Mathtut, jojo14344:
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!

:

:
x intercepts when they exist are found when y=0
set 3-x=0 and x+1=0.....x intercepts
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!
---->
We solve th eqn by Quadratic Formula:
where--->

2 values:

X-intercepts,(-1,0) & (3,0)
See graph

.
Thank you,
Jojo
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