Straight line graphs

What is the gradient of the graph y=3x?

• 1/3

• 3

• -3

• 1

What happens to the y intercept if you change the equations to y=3x +2 ?

• The gradient changes to 2

• The y intercept moves up to (0, 2)

• The y intercept changes to (0, -2)

• The gradient changes to -2

What is the y intercept of the graph y=3x ?

• (0, 0)

• (0, 3)

• (3, 0)

• (3, 3)

What happens to the gradient if you change the equation from y=3x +2 to y=2x +2 ?

• The y intercept moves up

• The y intercept moves down

• The gradient changes from 3 to 2

• The graph changes direction and the gradient becomes negative

What happens to the y intercept if I change the graph from y=2x +2 to y=2x -3 ?

• The y intercept moves up

• The y intercept moves down

• The gradient changes from 2 to 3

• The graph changes direction and the gradient becomes negative

What happens if I change the graph from y=2x -3 to y= -2x -3 ?

• The y intercept moves up

• The y intercept moves down

• The gradient changes from 2 to 3

• The graph changes direction and the gradient becomes negative