Question

http://prntscr.com/5g1w9a

@iGreen @Conqueror

Answer 1

please note that y as function of x has to be:
y=kx,
where k is the proportionality coefficient

Answer 2

please insert your numerical data into above equation

Answer 3

for exam,ple,after substitution, we can write:
20=k*8, so?

Answer 4

\[20=k*8\]
so?

Answer 5

@iKayla please, note that I can not give you the answer directly since Code of Conduct

Answer 6

@iKayla please solve the equation above in order to find k

Answer 7

namely, divide both sides of the above equation by 8, please

Answer 8

Are you asking me to solve for k ?

Answer 9

k = 5/2

Answer 10

@iKayla that's right! It is your answer!