If y varies directly as x and y=14 when x= 3.5 what is the constant of variation

Hey there! Direct variation, a concept commonly applied to linear equations.

The constant of variation is a concept which simply refers to the change in y, based on the change in x. If this change is constant, then it is a constant of variation.

You can find the constant of variation (usually referred to as 'k') by dividing any point's y-value by its x-value.

In this instance, we have the point (3.5, 14)

14 / 3.5 = 4

The constant of variation for this equation would be 4.

an altitude of 15,000 feet

step-by-step explanation:

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.