Graph the ordered pairs and draw the line through them.
Let's do these things one at a time. To make a function table, we will select some values of x which will be part of our domain. Then we will substitute these values into the function for x to find the corresponding values of y. These x- and y-values will create a set of ordered pairs.
x
4x
y
(x,y)
- 1
4( - 1)
- 4
( - 1, - 4)
0
4( 0)
0
( 0, 0)
1
4( 1)
4
( 1, 4)
2
4( 2)
8
( 2, 8)
We found four ordered pairs that lie on the graph of our function. Now we will graph the ordered pairs and connect them with a straight line.
The line is the complete graph of the function. The ordered pairs corresponding to any points on the line are solutions of the equation y=4x.
