Question

Find the y intercept of the parabola defined by y=2x^2+x-1

Answer 1

y intercept means "x=0"

what value do you get when x=0?

Answer 2

hang on

Answer 3

think about it like this; everthing with an x in it goes away :)

Answer 4

....so just -1? idk..

Answer 5

i believe so; lets compare:

y=2x^2+x -1
y = 0 + 0 -1
y = -1

yep

Answer 6

but 0,-1? I have to have an ordered pair.

Answer 7

when (x=0,y=-1)
( 0, -1); or just (0,-1)