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Direct Variation f(1) varies directly with x, and f(x) = 70 when x = 10. What is the constant of variation, K? Enter your answer in the box. k=

Respuesta :

Since the equation for direct variation is f(x)=k*x, We can deduce that when x=0 f(x) will be 0. We have now two points to calculate our K.

[tex]k=\frac{70-0}{10-0}=\frac{70}{10}=7[/tex]

Therefore, k is equal to 7.

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