Everything Maths Grade 10

3.Look at the graph below:

 3  2  1 1 2 3

 3

 2

 1

1

2

3 y= 2x+ 1

y= 3x+ 2

x

y

Solve the equationsy= 3x+ 2andy= 2x+ 1simultaneously.

4.Look at the graph below:

 3  2  1 1 2 3

 5

 4

 3

 2

 1

1

2

y=x 1

y=x+ 1

x

y

Solve the equationsy=x+ 1andy=x 1 simultaneously.

5.Look at the graph below:

 3  2  1 1 2 3

 1

1

2

3

4

5

y=x+ 4

y= 2 x+ 1

x

y

Solve the equationsy=x+ 4andy= 2 x+ 1simultaneously.

102 4.8. Chapter summary