Show that the two ordered pairs are solutions to the given equation. Then use the graph of the two points to determine another solution. Answers may vary.3x - 3y = 9; (-2, -5), (7, 4)
What will be an ideal response?
Show that (-2, -5) is a solution:
| 3x - 3y | = 9 |
| 3(-2) - 3(-5) | =? 9 |
| -6 + 15 | =? 9 |
| 9? | =? 9 | TRUE |
| 3x - 3y | = 9 |
| 3(7) - 3(4) | =? 9 |
| 21 - (12) | =? 9 |
| 9? | =? 9 | TRUE |
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