Question

Direct proportion and inverse proportion
​

Answer 1

Step-by-step explanation:

Direct Proportion

Two quantities a and b are said to be in direct proportion of they increase or decrease together in other words the ratio of their corresponding value remains constant

a / b = k

Where k is a positive number then the quantities a and b are said to very directly

in such a case if value b1 , b2 of b corresponding to the value a1 , a2 of a respectively then it became

a1 / b1 = a2 / b2

Inverse Proportion

Two quantities a and b are said to be in

inverse Proportion if an increase in the quantity a there will be a decrease in the quantity b and vice versa in other words the product their corresponding value should remain constant

If ab = k than a and b are said to very inversely in this case of b1 , b2 are the value of b corresponding to value a1 , a2 then a1,b1 = a2 b2 or a1 / a2 = b2 / b1

How to set up Equation

• First write down Proportion symbol
• Convert it as an equation using the constant Proportion
• Find the Constant of Proportion from given information
• After Finding the Constant of Proportion substitute in an equation