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2. y varies directly as the square of x. If y=96 when x = 4, find y when x=7.​

Sagot :

Answer:

i hope its help

Step-by-step explanation:

Haley,

"y varies directly as x" means y = kx

you do not know what k is yet, other than that it is some constant number.

Now plug in the given values, y=12 when x=4, in the equation

12 = 4k

=> k = 3

Now rewrite the equation with the k value you just found

y = 3k

Substitute 18 in place of x

y = 3(18)

y = 54