Question

Helpp meeee i don't understand constant of proportionality (don't put pictures i can't see).

Answer 1

A) 1/5

Explanation:

Points on the graph: (10, 2) and (20, 4)

Slope:

m=(y2-y1)/(x2-x1)

m=(4-2)/(20-10)

m= 2/10

m = 1/5