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  • 5 years ago

complete the table of values. write the results as ordered pairs. 3x-4y=12. 1st ordered pair where x=0, is: 2nd ordered pair where y=0, is: 3rd ordered pair where y= -6, is:

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  1. anonymous
    • 5 years ago
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    The graph of 3x - 4y = 12 on the coodinate-plane is a line. When x = 0 on the line 3x - 4y = 12, we see that the y-coordinate of the point on the line must satisfy 3(0) - 4y = 12. Or -4y = 12. Or y = -3. So when x = 0 on the line, we ave y = -3. Therefore, (0, -3) is on the line. Similarly, when y = 0 on the line, the point must satisfy 3x - 4(0) = 12. So 3x = 12. Or x = 4. So (4, 0) is on the line. (Note that the x-coordinate comes first.) Repeat that for y = -6. You're just pluggin -6 in for y and solving for x.

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