Philip P. answered • 07/13/17
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y = mx + b
- m = slope = 5
- b = y-intercept
y = 5x + b
To find b, plug in the given point, (2,1), and solve for b:
1 = 5·2 + b
1 = 10 + b
-9 = b
y = 5x - 9
