The variables x and y vary directly. use the values to find the constant of proportionality, k. then write an equation that relates x and y. write any fractions in simplest form. y=45; x=40

The constant of proportionality s 9/8 and the required equation that relates x and y will be

If the variable x varies directly as the variable y, this is expressed using the equation below:

k is the constant of proportionality

Given that y = 45 and x = 40

Substitute the given parameters into the expression to have:

Hence the required equation that relates x and y will be

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the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)