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Question
Draw a graph of each of the following equations: x + y - 3 = 0
Solution
x + y - 3 = 0
⇒ y = 3 - x
When x = 2, y = 3 2 = 1
When x = 0, y = 3 - 0 = 3
When x = 6, = 3 - 6 = - 3
| x | 2 | 0 | 6 |
| y | 1 | 3 | -3 |
Plotting the points (2, 1), (0, 3) and (6, -3), we get a line AB as shown in the figure.
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