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anonymous
 4 years ago
Can someone please help me find b and c so that the parabola y=3x^2+bx+c has vertex . (8,4)
anonymous
 4 years ago
Can someone please help me find b and c so that the parabola y=3x^2+bx+c has vertex . (8,4)

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Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1Use vertex form and put in the vertex. a = 3

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1Now rearrange the right side.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so do i just solve for y

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1\[y=3(x ^{2}16x+64)+4=3x ^{2}48x188\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0OK, yea it worked for c=188 but i put in b=48 and it said inccorect, i was doing it the way you suggested but i cant seem to figure out what b is

Mertsj
 4 years ago
Best ResponseYou've already chosen the best response.1Oh gee. 3 (16x)= POSITIVE 48x Sorry.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yea i just got it, thanks so much

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0theres also another problem, i think you were actually helping me out with it last week just wondering if you had time to help me again with it cant seem to figure it out
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