Line AB goes through the points A (0, –4) and B (6, 2). Which equation represents line AB?

The slope through A(0, −4) and B(6, 2) is (2 − (−4))/(6 − 0) = 6/6 = 1. Using point A in point-slope form gives y − (−4) = 1(x − 0), which simplifies to y + 4 = x. Therefore, choice C, “y + 4 = x,” represents line AB.

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