On a graph, the lines with the equations y=x^2+5x+4 and y=-3x-8 meet at two distinct points. Find the coordinates of these meeting points.

y=x^2+5x+4 y=-3x-8 Equate the two equations: x^2+5x+4 = -3x-8Rearrange so that all values are on one side: x^2+8x+12=0 Factorise the equation by finding two values that multiply to give 12 and add together to give 8: (x+6)(x+2)=0 The x coordinate for the meeting points will be given by the values of x that make each respective set of brackets equal to zero: Therefore x= -6 and x= -2 To find the y coordinate substitute your x values back into one of the equations: y= -3(-6) -8 =10 y= -3(-2) -8 = -2 Therefore the coordinates are (-6,10) and (-2,-2)

KH
Answered by Keir H. Maths tutor

3759 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find where the equation y = x^2 + x - 2 crosses the x-axis.


3 teas and 2 coffees have a total cost of £7.80. 5 teas and 4 coffees have a total cost of £14.20. Work out the cost of one tea and the cost of one coffee.


What is the inverse of a function and how do you find it?


Calculate the largest share when £400 is shared in the ratio 1 : 2 : 5.


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning