straight line intercept is divided into horizontal intercept and vertical intercept. The horizontal intercept is the horizontal coordinate of the intersection point of the straight line and X shaft. The intercept is the vertical coordinate of the point where the straight line and Y shaft intersect. To find the intercept you just set Y equal to 0 and find X, and to find the intercept you set X equal to 0 and find Y. For example, y=x-1 the horizontal intercept is 1 and the vertical intercept is -1.

Example: Draw straight line

in Plane Cartesian coordinate system

4x+5y-20=0

Solution first intercept on Calculator x shaft and y shaft.

Let y=0, 4x-20=0, x=5;

That is, the intercept on x shaft is 5 and the intercept point is A (5,0).

Let x=0, 5y-20=0, y=4;

That is, the intercept on y shaft is 4 and the intercept point is B (0,4)