Question

Y is directly proportional to X
When X=3, Y=8
Workout the value of Y when X=8

Answer 1

Answer: 64/3

Explanation:

The equation of a direct proportion is:

y = kx

When x = 3, y = 8.

8 = k × 3

k = 8/3

This equation of direct proportion is:

y = 8/3 x

When x = 8,

y = 8/3 × 8

y = 64/3

Answer: 64/3

Answer 2

64/3

Explanation:

The equation of a direct proportion is:

y = kx

When x = 3, y = 8.

8 = k × 3

k = 8/3

This equation of direct proportion is:

y = 8/3 x

When x = 8,

y = 8/3 × 8

y = 64/3

Answer: 64/3