Proportionality

Question 1

Definiton

If a proportional relationship exists between two quantities, it means:

Answer 1

1. As one quantity increases, the other increases.
2. There is a factor for the increase, termed the constant proportionality. This is a constant that never changes.

y ∝ x

Question 2

Equation Form

y ∝ x in equation form

Answer 2

y=kx
*where, k, is the constant of proportionality *

Question 3

Inverse Proportionality

Define inverse proportionality

Answer 3

Inverse proportionality means that if one quantity increase, the other decreases by the same proportion.

y ∝ 1/x

Question 4

Inverse Proportionality

‘y is inversely proportional to x’ in equation form

Answer 4

y ∝ 1/x
- y=k(1/x)