Question

1. Two linear equations are shown in the graph below. Enter the coordinates of these two linear

equations;

Answer 1

y=-0.5x+2; y=3x-5

Explanation:

First linear equation:

y=ax+b

A(0,2) B(4,0)

2=a*0+b

0=4*a+b

b=2

4a+b=0

4a+2=0

4a=-2

a=-0.5

y=-0.5x+2

Second linear equation:

y=cx+d

C(0,-5) D(2,1)

-5=c*0+d

1=c*2+d

d=-5

2c+d=1

2c-5=1

2c=6

c=3

y=3x-5