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What are the solutions of the equation 2x² = 8? Use a graph of the related function what are the coordinates of the parabola?
What do you mean, "What are the coordinates of the parabola"? There are an infinite number of ordered pairs on the parabola.
What are the solutions of the equation 2x² = 8? Use a graph of the related function
just answer that question
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.
|dw:1332431137097:dw|what type of parabole is it? is
Is a positive or negative?
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)
positive or negitive
It must open up since the a value is 2, which is positive.
|dw:1332431233564:dw| like this?
Nope. The parabola is moving down by 8, not 4.
oh ok thank you i got the right answer now!