F4 Chapter 5: The Straight Line

Question 1

What is the formula for straight line?

Answer 1

y=mx+c

Question 2

What are x/y-intercept?

Answer 2

x/y-Intercepts are the interceptions between a straight line and the 0 line of the x/y axis

Question 3

What are the 6 Equations of a Straight Line?

Answer 3

1. When the line is pararell to x-axis,
   y=k
2. When the line is pararell to y-axis,
   x=h
3. When the line passes through origin and a
   random point,
   y=mx
4. When the line has 2 intersects,
   x/a+y/b=1
5. When only gradient and one point is given,
   y=mx+c (Find C and sub into equation)
6. When only two points are given,
   y=mx+c (Find m & C then sub into equation)

Question 4

What are the characteristics of an equation of a straight line?

Answer 4

y=mx+c

x And y are variables while m and c are constants

Question 5

What is the formula for Gradient?

Answer 5

m= y2-y1/x2-x1 OR y1-y2/x1-x3
m= tan teta
m= -b/a