Y = mx + c Equation of a line

What is the general equation of a straight line ?

• y = mx + c

• x = my + c

• y = x + 1

• y = x

Which shows the correct calculation for the gradient of a line ?

• a

• b

• c

• d

This graph has a positive gradient

• True

• False

Y = mx + c

For this line, what is the value of c ?

• 6.5

• 5

• 0

• 3/4

Work out the gradient of this line

• 1/2

• -1/2

• 2

• -2

Work out the equation for this line

• y = 1/2 x + 4

• y = 2x + 4

• y = 4x - 2

• y = -2x + 4

Work out the equation of this line

• y = 3/2x - 1

• y = 2/3x + 1.5

• y = -2/3x - 1

• y = 2/3x - 1

A line parallel to this line will have the same .........

• y intercept

• x intercept

• gradient

Work out the equation of this line

• y = -x + 1

• y = x + 1

• y = x -1

• y = x

Which line has a negative gradient ?

• green

• red

• blue

• yellow