Question

What is the line of symmetry?
https://media.glynlyon.com/g_alg02_ccss_2013/8/equation_parabola.gif
x-axis

y-axis

x = p

x = -p

Answer 1

@texaschic101

Answer 2

@e.mccormick

Answer 3

What point on a parabola does the axis of symmetry go through?

Hint: starts the letter v and ends with the letter x.

Find the x value of this point and you will know the axis of symmetry.

Answer 4

I believe it's the x-axis

Answer 5

i mean x=p

Answer 6

It's not the x axis. If it were the x axis, you would have an equation that looked like this: x=Ay^2

Answer 7

so it would be the y axis?

Answer 8

Yes, since x value of the vertex is found by using this equation. -b/2a. The b value in the your equation is zero, so the x value of the vertex is zero.

Answer 9

But y axis is wrong

Answer 10

Ok, well I guess you'll have to someone else look at it.

Answer 11

It is the Y axis. I don't know what I was thinking.

Answer 12

It says the y axis is wrong on my assignment

Answer 13

I looking at a text book and it shows the standard form of the equation of a parabola with the vertex at the origin as x^2=4py for one that opens up or down.

That's the same formula as your picture, which shows y=1/4px^2