SOLUTION: I need help with finding this question if x varies directly as t2, and x=63 when t=3. I need to find x when t=6.

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Question 129792: I need help with finding this question
if x varies directly as t2, and x=63 when t=3. I need to find x when t=6.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I use what is called the "constant of proportionality", k
I can only do this when things vary DIRECTLY
x+=+k%2At%5E2
x=63 when t=3
63+=+k%2A3%5E2
63+=+9k
k+=+7
find x when t=6
x+=+7%2A6%5E2
x+=+7%2A36
x+=+252 answer