how to find the x and y intercept ?

Question

how to find the x and y intercepts??

Answer 1

Hey Linda -- "to catch Xint, make y=0 ... to grab Yint, make x=0" ... Best wishes, ma'am :)

Answer 2

Hi Linda,

 

The definitions of the x and y intercepts are as follows:

• x-intercept is a point on a graph where y is zero
• y-intercept is a point on a graph where x is zero

Therefore taking these definitions, if you had the equation of a graph : 5x + y = 9

you would find the x-intercept by replacing y with zero. Therefore:

5x + 0 = 9 => 5x = 9 => x = 5/9. When y is zero x is 5/9 which also means that the x-intercept is 5/9

 

To find the y-intercept you would replace x with zero. Therefore:

5(0) + y = 9 => 0 + y = 9 => y = 9. When x is zero y is 9 which also means that the y-intercept is 9.

 

Hope this helps!