4. Examples
Find the equation of the straight line that passes through the
points
a) (0, 3) and (4, 19)
b) (2, 7) and (4, 13)
c) (-2, 6) and (4, -18)
5.
6. Examples – Does a point lie on a line?
The equations of four lines are given below.
Line A: y = 4x + 1
Line B: y = 9 − 2x
Line C: y + 2x = 8
Line D: y − 3x = 3
Which lines go through the point (2, 9)?