Medal To anyone who answers right!!!^_^

Find the vertex of the parabola below.

https://media.studyisland.com/cgi-bin/mimetex.cgi?y\%20=\%205x^{2}\%20-\%2020x\%20+\%2028

A. (8,2)
B. (2,8)
C. (-2,-8)
D. (-8,-2)

Question

Medal To anyone who answers right!!!^_^ 

Find the vertex of the parabola below.

https://media.studyisland.com/cgi-bin/mimetex.cgi?y\%20=\%205x^{2}\%20-\%2020x\%20+\%2028

	A. 	 (8,2)
	B. 	 (2,8)
	C. 	 (-2,-8)
	D. 	 (-8,-2)

zale101 · Answer

all i see is y in the image

kohai · Answer

Zale, the equation is y=5x^2-20x+28

zale101 · Answer

my computer is blind .-.

kohai · Answer

The x-coordinate for this equation can be found with this formula:
$$\frac{ -b }{ 2a }$$

kohai · Answer

And to find the y-coordinate, you plug that number back into the equation

kohai · Answer

In this case, your A will be 5, your B will be -20, and your C will be 28

kohai · Answer

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