Question

Find the eqution of a line that passes through point a and b
a=(4,7)
b=(2,3)

Answer 1

y=2x-1

Explanation:

straight line equation

y=mx + c

find gradient(m) first,use formula;

m=3-7/2-4

m= -4/-2

m=2

use one the coordinates

(2,3)

3=2(2)+c

3=4+c

c=3-4

c = -1

y = 2x - 1