Find the coordinates of the two points where the lines y=x²+4x+6 and y=x+4 meet.

To solve these equations we must make them equal to eachother. This gives us x2+4x+6=x+4, we must then subtract the 'x+4' from both sides to give us an equation that equals 0. This gives us the following equation x2+3x+2=0. To solve this we can factorise it which gives us (x+1)(x+2)=0. To find the values of x we must make each bracket equal to 0 so we get x+1=0 -> x=-1 and x+2=0 -> x=-2. Now we have our values for x, we must find the y values, this can be done by substituting each x -value into our y equation (y=x+4). For x=-1, we get y=(-1)+4 -> y=3 so our coordinate is (-1,3), and for x=-2, we get y=(-2)+4 -> y=2 so our coordinate is (-2,2).

GH
Answered by Gaby H. Maths tutor

3314 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

y = (3t + 1)/p, Where t = 3, and y = 2, what is the value of p?


The points (0, -5) and (5, 0) lie on a curve y=x^2 + ax + b. Find the stationary points on the curve.


How do I solve simultaneous equations? Such as 2x + 4y = 8, 3x + 2y = 8.


The ratio of Adam's age to Bob's age is 1:2. In 12 years time, the ratio of their ages will be 3:5. Calculate their current ages.


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