The EzyEducation website uses cookies to help ensure we give you the best experience.
If you continue without changing your settings, we assume that you are happy to receive all cookies on the EzyEducation website.
Please refer to our Privacy and Cookies Statement to

find out more.

Continue

Countdown to Exams - Day 47 - Equation of a straight line

Countdown to Exams - Day 47 - Equation of a straight line

Today we are looking the Equation of a straight line. Before we move onto the more complex straight line graphs, we must understand the equations of horizontal and vertical lines.

A horizontal line has the equation y =? where ? is the point the line crosses the y-axis. A vertical line has the equation x =? where ? is the point where the line crosses the x-axis.

All straight line graphs follow the general rule y = mx+c where m is the gradient (steepness) of the line and c is the y-intercept. You will need to be able to calculate gradients effectively and substitute into the general rule to find the y-intecept if you are given some coordinate points.

Matt covers the topic of straight line graphs in the video below.

EzyMaths is the ultimate online GCSE Maths support service. Schools can enjoy a free 30-day trial to see for themselves how EzyMaths can support their teaching and help their students achieve better grades.

Countdown to Exams - Day 48 - Midpoints, Parallel ...
Are you struggling to keep up with your students?

Related Posts

 

Comments

No comments made yet. Be the first to submit a comment
Already Registered? Login Here
Guest
Saturday, 25 September 2021
Forgot your password?