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qaws [65]
3 years ago
12

Find the x- and y- intercepts of the line with the equation 3x+4y=-12

Mathematics
1 answer:
masya89 [10]3 years ago
8 0
3x + 4y = -12

X - Intercept:    3x + 4y = -12
                      3x + 4(0) = -12
                           3x + 0 = -12
                                 3x = -12
                                  3       3
                                   x = -4
                             (x, y) = (-4, 0)

Y - Intercept:   3x + 4y = 12
                     3(0) + 4y = 12
                         0 + 4y = 12
                               4y = 12
                                4      4
                                 y = 3
                           (x, y) = (0, 3)
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hoa [83]

9514 1404 393

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The marked angles form a linear pair, so have a sum of 180°.

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