Question

The Parabola
y=x^2+2x-8
how do you find the solution? on the Graphing calculator?

Answer 1

@Hero

Answer 2

If you are going to use a graphing calculator. Graph it, look for the x intercepts (when y=0)

Answer 3

are you wanting us to help you use a graphing calculator?

Answer 4

because you don't need a calculator

Answer 5

yeah is there another way to use without the calculator? @amorfide

Answer 6

Without a calculator, you just need to factor the quadratic.

a quadratic is in the form of ax^2+bx+c

you need to find two numbers that add up to the value of b, and multiply to the value of c

Answer 7

so your question is x^2+2x-8

Answer 8

find two numbers that add up to 2 and multiply to -8

Answer 9

yeah i don't understand how to find the solution

Answer 10

"find two numbers that add up to 2 and multiply to -8
"

Answer 11

shouldn't be hard lol

Answer 12

ok thanks for the help :)

Answer 13

you got it ?

Answer 14

i just have 1 question. on the calculator when looking for the solution, do you press 2nd trace 2?

Answer 15

for mine, you do 2nd graph

Answer 16

yeah the chart of common factors. but to find the zero of the solution.

Answer 17

look for when y is 0. the x value if your solution

Answer 18

oh ok thanks