Line ab contains points a(4, 5) and b(9, 7). what is the slope of ab?

As we know the formula to calculate the slope is m = y2 - y1 divided by x2 - x1.

Where m is the slope. y2 is the second y co ordinate. y1 is the first y co ordinate. x2 is the second x co ordinate. x1 is the first x co ordinate.

So to calculate we can write it out as m = 7 - 5 / 9 - 4 which comes out to be 2/5. So the slope of AB is 2/5.

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