Chl4oepkarlanocoa Chl4oepkarlanocoa

03-02-2017
Mathematics

contestada

What are the x-intercepts of the quadratic function?

y = x² + x – 2

1

2 and 1

2 and –1

–2 and 1

Respuesta :

TheHero TheHero

03-02-2017

To find the x intercept set y = 0

x^2 + x - 2 =0

(x+2)(x-1) = 0

x = -2 , x = 1

Answer Link

The80sKid The80sKid

06-02-2017

Your answer should be the last one, -2 and 1. Hope this helps!

Answer Link

Otras preguntas

Find Domain of the functionsquare root of (x-8)/x(x-9)

How is it possible for Mercury to have frozen ice ?

Find Domain of the functionsquare root of (x-8)/x(x-9)

what is the answer for (20,8),(9,16) ?

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.

what is the answer for (20,8),(9,16) ?

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?

find an equivalent expression without parentheses -(50x-15y+15)=