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Khennethsimtimgo
Answered

if y varies directly as square of x and y=98 , if x=7 then what is k?​

Sagot :

Answer:

2

Step-by-step explanation:

[tex]\rm y = kx^2[/tex]

Given that y = 98 when x = 7

[tex]\implies \rm 98 = k(7^2)[/tex]

[tex]\implies \rm 98 = 49k[/tex]

[tex]\implies \rm \frac{98}{49} = k[/tex]

[tex]\boxed{{\rm 2= k}}[/tex]

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