Here we will learn about the graph of area vs. side of a square.
We know that area of a square = (side)^{2}. Thus, A = x^{2}.x  0  1  2  3 


Thus, we have the
points O (0, 0), B (1, 1), C (2, 4) and D (3, 9).
Plot these points on a graph paper and join them
successively to obtain the required graph given below.
2. Reading off from the graph of area vs. side of a square:
On the xaxis, take the point L at x = 4.
Draw LP ⊥ xaxis, meeting the given graph at P.
Clearly, PL = 16 units.
Therefore, x = 4 ⇒ A = 16.
Thus, when x = 4 units, then A = 16 sq. units
`Related Concepts:
● Ordered pair of a Coordinate System
● Find the Coordinates of a Point
● Coordinates of a Point in a Plane
● Plot Points on Coordinate Graph
● Simultaneous Equations Graphically
● Graph of Perimeter vs. Length of the Side of a Square
● Graph of Simple Interest vs. Number of Years
7th Grade Math Problems
8th Grade Math Practice
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