SOLUTION: If y is directly proportional to x2 and y = 365 when x = 15, find y if x = 10.

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Question 1050648: If y is directly proportional to x2 and y = 365 when x = 15, find y if x = 10.
Answer by Sir226(11) About Me  (Show Source):
You can put this solution on YOUR website!
y=kx²
365=k×15²
365/225=225k/225
1.622222222=k
y=kx²
y=1.622222222×10²
y=162.2222222
y=162