SOLUTION: how do you find the slope of the line passing through (7,3) and (9,-2)

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Question 48538: how do you find the slope of the line passing through (7,3) and (9,-2)
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
m = (y2-y1)/x2-x1) [Use the slope of a line formula]
m = (-2-3)/(9-7) [Plug-in the values]
m = -5/2 = the slope
.
y=mx+b [Use the slope-intercept formula to find the equation of the line]
3=(-5/2)(7) + b [Plug-in the values]
3=(-5/2) + b [Solve for b]
41/2 = b
y=mx+b [Plug-in the values for the slope and y-intercept (b) only]
y=(-5/2)x + 41/2 [Equation of the line]