Question

Y varies directly as x and y=126 when x=5 find k and the variance equation

Answer 1

k=126/5

y=(126/5)*x=25.2x

Explanation:

If y varies directly as x, we can express their relationship as y=kx.

Plugging in the values: 126=5k

Divide by 5 on both sides: k=126/5

The variance equation is: y=(126/5)*x

Or (in decimals): y=25.2x