The line AB has equation 3x + 5y = 7 (a. Find the gradient of AB)

This is an easy one as long as you remember the important equation y = mx + c. I can't express how important it is for you to learn that equation.

Step one: find y. Do this by taking 3x away from both sides and dividing by 5 so that the y is by itself. y= 7/5 - 3x/5

Step two: identify that this looks like your equation y=mx+c where m is the gradient and c is a number.

You therefore know that the gradient of AB is -3/5.

Answered by Penny W. Maths tutor

4166 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

How do you find dy/dx for a set of parametric equations?


What is mathematical induction and how does it work?


The General Form of the equation of a circle is x^2 + y^2 + 2gx +2fy + c = 0. Find the centre of the circle and the radius of the circle in terms of g f and c.


How do I differentiate implicitly?


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