What are the solutions of the equation 2x² = 8? Use a graph of the related function

what are the coordinates of the parabola?

Question

What are the solutions of the equation 2x² = 8? Use a graph of the related function 

what are the coordinates of the parabola?

mertsj · Answer

What do you mean, "What are the coordinates of the parabola"?  There are an infinite number of ordered pairs on the parabola.

anonymous · Answer

What are the solutions of the equation 2x² = 8? Use a graph of the related function

anonymous · Answer

just answer that question

mertsj · Answer

x=2 or -2

anonymous · Answer

This is like the other question except first you need an an equation:
$$2x^2=8$$
$$2x^2-8=0$$
$$y=2x^2-8$$
Since you need to graph, this is a parabola which has been vertically stretched by a factor of 2, and then shifted down 8.

anonymous · Answer

|dw:1332431137097:dw|what type of parabole is it? is

mertsj · Answer

Is a positive or negative?

anonymous · Answer

yea

anonymous · Answer

The reason we make the expression equal 0, and then replace 0 with y is because we want to know the value of x when y=0....because that would be an x-intercept (solution)

anonymous · Answer

positive or negitive

anonymous · Answer

It must open up since the a value is 2, which is positive.

anonymous · Answer

'a' value

anonymous · Answer

|dw:1332431233564:dw|             like this?