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Mathematics 10 Online
OpenStudy (bossimbacon):

Variable y varies directly with x2, and y = 96 when x = 4. What is the value of y when x = 2? y =__ @mathstudent55 is it 27 or 48?

OpenStudy (thatonegirl_):

The formula would be y=kx2 so when you plug everything in it is 96=k(8). Solve for k you get 12. Then plug that it to a new equation, y=12[2(2)] -> y=12(4)-> y=48. Do you get it?

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