Answer:
when x = 24, y = 108
Step-by-step explanation:
The equation relating x and y is
y = kx ← k is the constant of proportion
To find k use the condition when x = 4 , y = 18, then
18 = 4k ( divide both sides by 4 )
4.5 = k
y = 4.5x ← equation of proportion
When x = 24, then
y = 4.5 × 24 = 108
