The document discusses how to graph a linear function. It explains that the graph of a linear function is always a straight line. It recommends assigning at least 3 x-values and calculating their corresponding y-values to accurately plot the line. As an example, it shows how to graph the linear function y = 2x + 4 by assigning x-values from -2 to 2, calculating the corresponding y-values using the equation, and plotting the points on a graph.

1. GRAPH OF A LINEAR
FUNCTION:
NADEEM UDDIN
ASSOCIATE PROFESSOR
OF STATISTICS
https://www.slideshare.net/NadeemUddin17
https://nadeemstats.wordpress.com/listofbooks/

2. *Graph of a linear function:
The graph of linear equation is always a straight
line. In order to draw the graph of linear
equation better to assign at least 3 values of x
and their corresponding value of y.
The procedure is explained in the following
example.
Example
Draw a graph of the linear function y = 2x + 4.

3. Solution:
First of all we assign different values to ‘x’
and obtain the values of ‘y’.
Let x = -2, -1, 0, 1, 2
x y = 2x + 4 y (x, y)
-2 y = 2(-2) + 4 = -4 + 4 = 0 0 (-2, 0)
-1 y = 2(-1) + 4 = -2 + 4 = 2 2 (-1, 2)
0 y = 2(0) + 4 = 0 + 4 = 4 4 (0, 4)
1 y = 2(1) + 4 = 2 + 4 = 6 6 (1, 6)
2 y = 2(2) + 4 = 4 + 4 = 8 8 (2, 8)

4. Now we plot the points