How do you find the X and Y intercepts of an linear equation?

To find the X intercept of an equation you can make Y = 0 and then solve for X. To find the Y intercept of an equation you can make X = 0 and then solve for YWhen you plot the equation on a graph with axis: X and Y, you can see that when the equation line crosses the X axis the Y co-ordinate at that point is 0. Alternatively when the line crosses the Y axis you can see the x co-ordinate for that point is 0.For the equation Y = 3X-1 to find the X intercept we make y = 0 and solve for X 3X-1=03X=1X=1/3 The X intercept is (1/3,0)To find the Y intercept we make X equal to 0 and solve for YY=3(0)-1Y=-1The Y intercept is (0,-1)You can see from the diagram above that the x and y intercepts are literally where the equation intercepts the axis.

JT
Answered by Jack T. Maths tutor

3450 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How to solve the simultaneous equations of 3x + 2y = 9 and x-y = 3


How do I solve simultaneous equations when one of the equations is not linear?


A four sided pyramid, with a vertical height of 10cm and the base 4cmx4cm is placed on the top of a cylinder with radius 1.5cm and a height of 15cm. What is the exposed surface area?


How should I calculate the values of a and b when a(4x+12) is equivalent to 2x+36b?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences