Enter your answer and show all the steps that you use to solve this problem in the space provided x y
4 6.4
7 11.2
10 16
13 20.8
Determine whether y varies directly with x. if, so find the constant of variation k and write the equation.

r and t.

both are 64 degrees.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have