SOLUTION: For the straight line defined by the points (3, 51) and (5, 87), determine the slope and y-intercept.

Question 786670: For the straight line defined by the points (3, 51) and (5, 87), determine the slope and y-intercept.
Found 2 solutions by oscargut, stanbon:
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
slope is 18
and y-intercept is -3
If you need more help with similar questions you can contact me now at:
mthman@gmail.com
Thanks

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For the straight line defined by the points (3, 51) and (5, 87), determine the slope and y-intercept.
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slope = (87-51)/(5-3) = 36/2 = 18
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Form: y = mx + b
y-intercept::
Substitute fr y,m,x to solve for "b":
87 = 18*5 + b
b = 87-90
b = -3
--------
Equation:
y = 18x - 3
================
Cheers,
Stan H.
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