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mart [117]
2 years ago
5

How to write a equation that passes through the points (-1,12) and (4,-8)

Mathematics
1 answer:
defon2 years ago
8 0

Answer:

y - 12 = (-4/5)(x + 1)

Step-by-step explanation:

Let's use the point-slope formula y - k = m(x - h), where (h, k) is a point on the line and m is the slope of the line.

1.  Find the slope.  As we go from (-1, 12) to (4, 8), x (the run) increases by 5 and y (the rise) decreases by 4.  Thus, the slope is m = rise/run = -4/5.

2.  Plug into the formula (given above) the following:

-4/5 for m, -1 for x and 12 for y:

y - 12 = (-4/5)(x + 1)

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