Which of the following is the vertex of the quadratic equation y = 6x2 – 24x + 32?

(–2, –8)
(2, –8)
(2, 8)
(–2, 8)

Question

Which of the following is the vertex of the quadratic equation y = 6x2 – 24x + 32?

                (–2, –8)
		(2, –8)
		(2, 8)
		(–2, 8)

anonymous · Answer

a=6 b=-24 c=32. to find vertex, you do -b/2a. so (-)(-24)/2(6) so, it would be 24/12, which is 6. then you have to plug that in to find..i think? lol i'm wrong, sorry

zepp · Answer

Yes, to find the x value of the vetex, use -b/2a, but @hiimchristina it's would be 24/12 = 2, not 6
Then plug two in you equation and solve for y, and you'll find the corresponding value of y for that x (2).

anonymous · Answer

hold up.....

anonymous · Answer

thank you @zepp

anonymous · Answer

omfg, i made a stupid mistake. lol i know it's 2. i was looking at it too quick.

anonymous · Answer

it's (2,8) look at this.....

anonymous · Answer

http://www.wolframalpha.com/input/?i=+vertex+of+y+%3D+6x2+ –+24x+%2B+32

anonymous · Answer

so, it would be 2. then you plug it in 6{2}^2 - 24(2) + 32

anonymous · Answer

yea

anonymous · Answer

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