Question

I need help fast K12 look at picture

Answer 1

k = 45

Explanation:

k (constant of proportionality) = y / x

y = 135 and 225 and x = 3 and 5

So you do 135 / 3 which is 45

And then 225 / 5 is also 45

Therefore the constant of proportionality (k) is 45