SOLUTION: Find the slope of the line containing these pair of points (7,2) and (9,-7) it says to simplify the answer and type a integer or a fraction Help please?

Question 249655: Find the slope of the line containing these pair of points (7,2) and (9,-7)
it says to simplify the answer and type a integer or a fraction
Help please?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
slope m = y1-y2 over x1-x2
in words divide the difference in y by the difference in x
This is sometimes called rise over run where y is the rise and x is the run.
the two y's are 2 and -7
the two x's are 7 and 9
Don't forget change of signs when subtracting

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