michellealhadd michellealhadd

07-04-2015
Mathematics

Answered

which is the quadric variation equation for the relationship?
y varies directly with x^2 and y=72 when x=6
a. y=2x^2
b. y=4x^2
c. y=12x
d. y=x^2+25

Answer :

konrad509 konrad509

07-04-2015

[tex]y=kx^2\\ 72=k\cdot6^2\\ 72=36k\\ k=2\\ y=2x^2\Rightarrow A [/tex]

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