Learn how to solve for coordinates of intersection between two lines !

1. Solving for coordinates of intersection between lines By Gunn Wei Lim 2O2 (11)

2. What does it mean? Basically, its solving the coordinates of 2 intersecting lines to find the common point or the intersecting point where both lines intersect. Don’t understand? Let see how to solve first !

3. How to solve Firstly we have to find out the equation of the 2 intersecting lines. In the equation, y will be the subject and there is a gradient and a point in which the line intersects with the y-axis. When we find the equation of both lines, we can set them as equal to each other. As there is a intersecting point, the value of x in both equation will be the same. Boring ==zzz Let’s have an example ! :D

4. Example We have two equation … Y = 2x + 3 Y = -0.5x + 7 Let’s see this in a graph !

5. Graph x You should had learnt how to draw a graph in 5.6 . y

7. When the two equations intersect at point Z, the value of x and y in both equation will be the same

9. Z Z = 1.6 , 6.2

10. Answer = 1.6, 6.2

11. Below is a video that will let you understand gradient and intercept ! ( A recap for 5.6)