In the special case of a vertical line, the slope is undefined. If the slope is equal to zero, the line is horizontal and does not slant up or down. If the slope is negative, then the line is slanted down and drops from left to right on the graph. If the slope is positive, then the line is slanted up and rises from left to right on the graph. In this case, you can simplify the fraction to reduce it to its simplest form rather than converting it to a decimal. In some cases, you may want to represent the slope as a fraction or ratio. You can do this by dividing the numerator in the slope formula by the denominator, or more simply, by using a fraction to decimal calculator. The final step is to divide the delta of y by the delta of x to find the slope. Δx = x 2 – x 1 Step Three: Divide the Delta of y by the Delta of x You can find the delta of x using the formula: The denominator represents the change in the value of x, which is known as the delta of x, or Δx. You can find the delta of y using the formula: The numerator represents the change in the value of y, which is known as the delta of y, or just Δy. The absolute value of the numerator will be the vertical distance between the two points, and the absolute value of the denominator will be the horizontal distance between the two points. Next, evaluate the numerator and denominator of the slope formula using these values. Step Two: Find the Difference in x and y Coordinates Start by replacing the y 1, y 2, x 1, and x 2 values in the formula with the coordinates for the two points on the line.

Step One: Substitute Points in the Slope Formula Then, follow three easy steps to calculate the slope.

Line in slope intercept form calculator