- equation of a straight line: y = mx + c
- x: horizontal axis
- y: vertical axis
- m: gradient = change in y/ change in x between any two co-ordinates
- c: y-intercept
- To find the y-intercept
- make x=0 and solve for y
- To find the x-intercept
- make y=0 and solve for x
- To find the intersection of two lines
- equate each line and solve for x or y
Equation of a line
Question 1
Question 2
Question 3
Rearranging the equation of the line
- get the line in the form y=mx+c
Question 4
x-intercept
Question 5
Intersection of two lines
Question 6
