Step 1: Take a rational function whose intercepts we have to calculate.
Step 2: Move all terms of 'y' on one side of equation and terms of 'x' on other side of equation.
Step 3: For calculating x- intercepts put value of 'y' as zero.
Step 4: For calculating y- intercepts put value of 'x' as zero.
Step 5: Apply cross multiplication to find value of intercept.
Step 6: Put value of one intercept in equation to find value of other intercepts.
It will be easy to understand the procedure of finding x- intercept with help of an example. So let us take an example. We are given a rational function y = (4x + 6) / (x - 2).
Now we will put value of 'y' equals to zero in order to get x- intercepts:
0 = (4x + 6) / (x - 2).
Now by cross multiplication (x - 2) becomes zero and equation becomes: 0 = 4x + 6.
Now we can calculate value of x- intercept as:
0 = 4x + 6,
-6 = 4x,
-6 /4 = x,
x = -3 / 2.
This graph will intersect x- axis at Point -3 /2.