Chapter Review
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Make a function table to obtain ordered pairs.
To graph the equation y=4x+3, we will follow two steps.
To make a table of Values, we will select some values of x. Then, we will substitute these values for x to find the corresponding values of y. These x- and y-values will create a set of ordered pairs.
| x | 4x+3 | y | (x,y) |
|---|---|---|---|
| 0 | 4( 0)+3 | 3 | ( 0, 3) |
| 1 | 4( 1)+3 | 7 | ( 1, 7) |
| 2 | 4( 2)+3 | 11 | ( 2, 11) |
| 3 | 4( 3)+3 | 15 | ( 3, 15) |
We found four ordered pairs that lie on the graph of our function.
Next, we will graph the ordered pairs and connect them with a straight line.
The line is the complete graph of the equation. The ordered pairs corresponding to any points on the line are solutions of the equation y=4x+3.