Line ab goes through the points a (0, –4) and b (6, 2). which equation represents line ab?
y – 4 = 3x
y – 2 = 3(x – 6)
y + 4 = x
y + 6 = x + 2

To determine the answer we need to use the slope point form of the equation of the line. It is expressed as:

y - y1 = m(x - x1)

where m is the slope and is (y2-y1) / (x2-x1)

We do as follows:

y - y1 = m(x - x1)
y - -4 = (2+4)/(6-0) (x-0)
y +4 = x

Therefore, the third option is the correct answer. Hope this answers the question.

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