Formula

Definition of Formula

• A Formula is an expression or equation that expresses the relationship between certain quantities.

For example, is the formula to find the area of a circle of radius r units.

From this formula, we also learn the relationship between the radius and the area of a circle. The area of a circle varies directly as the square of its radius. Here is the constant of variation.

                             

Solved Example on Formula

A ball is dropped from a height h ft above the ground. The formula describes the velocity with which the ball reaches the ground in ft/sec. Find V when h = 16 ft.

Choices:

A. 64 ft/sec

B. 128 ft/sec

C. 16 ft/sec

D. 32 ft/sec

Correct Answer: D

Solution:

Step 1: Substitute h = 16 in the formula .

Step 2: We get, V = 32 ft/sec for h = 16 ft.

                              

Related Terms for Formula

• Expression
• Equation

       

Additional Links for Formula

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