Slope of a straight line given two points.

The slope or gradient of a line is a number that describes its direction and steepness and generally is denoted by the letter m in the equation of the straight line:

Y=mX+b

Following this steps would be easier to find the slope given two points.

1. Identify X1,Y1 and X2,Y2
2. Use the slope equation defined by: (m=(Y2-Y1)/(X2-X1))

Example:

Given the points (1,2) , (3,4).

1.Identify X1 ,Y1 and X2,Y2

In this occasion the point (1,2) is going to be X1,Y1 and the point (3,4) is going to be X2,Y2.

2. Use the slope equation.

To use the slope equation we just remplace the letters for the numbers and then solve the equation.

m=((Y2-Y1)/(X2-X1))

m=((4–2)/(3–1))

m=(2/2)

m=1

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