Where do the graphs of y=3x-2 and y=x^2+4x-8 meet?

In order to find the points where these functions meet, we can equate them to get 3x-2 = x^2+4x-8 .

Subtraction (3x-2) from both sides, we get x^2+x-6 =0 which we can factorise to get (x+3)(x-2)=0

Therefore x=-3 or x=2 , and we can then get the values of y from this.

So the final answers are (-3, -11) and (2,4)

HS
Answered by Helen S. Maths tutor

3379 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

How do I differentiate 3^2x?


Integrate cos^2x + cosx + sin^2x + 3 with respect to x


Differentiate (x^2)cos(3x) with respect to x


Prove by contradiction that sqrt(3) is irrational. (5 marks)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences