Question

use the quadratic formula to find any x-intercepts on the graph of the equation.
y=x^2+2x-10

Answer 1

what is the quadratic formula?

Answer 2

I don't know

Answer 3

ax^2+bx+c=0 ?

Answer 4

nope :P
well the quadratic formula states that

\(\huge x=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \)

Answer 5

can you continue now that you have the formula?

Answer 6

no

Answer 7

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.

Answer 8

are we okay now?

Answer 9

To find x-intercepts put y =0 in y=x^2+2x-10

Answer 10

no

Answer 11

nw it is a quad eq....use Quadratic Formula..

Answer 12

ok how do I do that ?

Answer 13

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

Answer 14

I don not know how to do that ???????

Answer 15

a=1
b=2
c=-10

replace that into the equation that into the formula

Answer 16

how are we doing?

Answer 17

x^2+2x+-10=0

Answer 18

what about it?

Answer 19

so now what do I do w/ it ?

Answer 20

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

Answer 21

which part of that don't you understand? :/