anonymous
  • anonymous
use the quadratic formula to find any x-intercepts on the graph of the equation. y=x^2+2x-10
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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sasogeek
  • sasogeek
what is the quadratic formula?
anonymous
  • anonymous
I don't know
anonymous
  • anonymous
ax^2+bx+c=0 ?

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sasogeek
  • sasogeek
nope :P well the quadratic formula states that \(\huge x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \)
sasogeek
  • sasogeek
can you continue now that you have the formula?
anonymous
  • anonymous
no
sasogeek
  • sasogeek
ok so if you have \(\huge ax^2+bx+c=0 \) substitute the values of a b and c into the formula and solve it.
sasogeek
  • sasogeek
are we okay now?
anonymous
  • anonymous
To find x-intercepts put y =0 in y=x^2+2x-10
anonymous
  • anonymous
no
anonymous
  • anonymous
nw it is a quad eq....use Quadratic Formula..
anonymous
  • anonymous
ok how do I do that ?
sasogeek
  • sasogeek
you have an equation similar to ax^2+bx+c=0 substitute the values into the quadratic formula i gave you, and solve it algebraically
anonymous
  • anonymous
I don not know how to do that ???????
sasogeek
  • sasogeek
a=1 b=2 c=-10 replace that into the equation that into the formula
sasogeek
  • sasogeek
how are we doing?
anonymous
  • anonymous
x^2+2x+-10=0
sasogeek
  • sasogeek
what about it?
anonymous
  • anonymous
so now what do I do w/ it ?
sasogeek
  • sasogeek
i told you what a,b, and c are in that equation. a=1 b=2 c=-10 replace the values of a,b and c into the quadratic formula i gave you and solve it to find x
sasogeek
  • sasogeek
which part of that don't you understand? :/

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