Question

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Answer 1

Equation in vertex form is y= a(x-h)^2 +k
where h,k is the vertex of the parabola drawn.
can u find the co-ordinates of vertex from the graph ?

Answer 2

150?

Answer 3

the vertex is a pair of points (h,k) where this graph hits its maximum
at which point is this graph max ?

Answer 4

sorry I mean 50,150

Answer 5

yeah, thats correct, so h=50, k = 150
now you only need a
any ideas how to get it....

Answer 6

2/3

Answer 7

nopes, how did u get that ?

Answer 8

wait is it 50/30

Answer 9

u have point 0,0 which lie on this curve
so just put x=0, y=0 in y= a(x-h)^2 +k
and u already have h=50,k=150
so u get a

Answer 10

0=a(0-50)^2+150
a=-150/50^2=?

Answer 11

9

Answer 12

-150/50^2 = -150/2500 = -15/250 = -3/50
so the final equation becomes
y= - (3/50)(x-50)^2 +150

Answer 13

thx i think i get it some what :)

Answer 14

welcome ^_^