Question

PLEASE HELPP MEEE!
Find the x-intercepts of the graph of each function: y=x^2+2x

Answer 1

Do you understand what the term "x-intercept" means, like in terms of the graph?

Answer 2

Yes

Answer 3

Do i factor the x^2 + 2x?

Answer 4

Once we have the equation (y=0 for x-intercepts)
x^2 + 2x = 0
Yes, we can factor here to solve for the x-values.

Answer 5

ok let me work it out

Answer 6

x(x+2)

Answer 7

Yep, that's correct.
Now, we just equate each factor to 0 to solve (If ab = 0,. then a= 0 or b= 0)

Answer 8

y = x^2 + 2x
y = x(x+2)
x = 0
or
x+2 = 0
x = -2

Answer 9

i got x=0 or x=-2!

Answer 10

if finding x intercepts , then you make it so that y = 0
and then solve (that's what i did)

y = x^2 + 2x
0 = x^2 + 2x
0 = x(x+2)
and so then you get x = 0 and -2

Answer 11

thank you both so much this really helped a lot!

Answer 12

if you ever have to find y -intercepts, you set X equal to 0 as opposed to Y. no problem (:

Answer 13

You're welcome. :)

Answer 14

Thank youu!