crews
1 Answer
chelleanne
(2,5) and (7,-3)
Find slope first: (m)
y2 - y1 -3 - 5
m = ----------- > m = --------------
x2 - x1 7 - 2
m = -8/5 is the slope.
Now, find the y intercept (b) with one set of points. (2, 5)
y = mX + b
5 = -8/5(2) + b
5 = -16/5 + b > 5 = -16/5 + b
+16/5 +16/5
-----------------------
5 + 16/5 = b > 25/5 + 16/5 = b
41/5 = b is the y intercept.
The equation: y = mx + b
y = -8/5 * x + 41/5
y = -8x/5 + 41/5
| 14 years ago. Rating: 1 | |
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