Year 8 review

What is the equation of this line? (Refer to the graph provided)

• x = 14

• y = 14

• x = -14

• y = -14

Which of the following represents the correct lines for x = 3 and y = -2 on a grid?

• A vertical line at x = 3 and a horizontal line at y = -2

• A horizontal line at x = 3 and a vertical line at y = -2

• Two diagonal lines crossing at (3, -2)

• A single line passing through (3, -2) with slope 1

The graph of y = x + 4 is a straight line. What is the slope of this line?

• 1

• 4

• 0

• -1

By first filling in the table for y = 2x + 5, fill in the missing value for y when x = -2.

• 1

• -1

• 3

• -3

By first filling in the table for y = 2x + 5, fill in the missing value for y when x = -1.

• 3

• -3

• 7

• -1

By first filling in the table for y = 2x + 5, fill in the missing value for y when x = 0.

• 5

• 0

• 2

• 10

What is the y-intercept of the graph of y = 2x + 5?

• 2

• 5

• -5

• 0

What is the y-intercept of this line?

• 2

• 0

• -1

• 4

What is the gradient of this line?

• 1

• 0

• -1

• 2

What is the equation of the straight line shown below? Give your answer in the form y = mx + c, where m and c are integers or fractions in their simplest forms.

• y = x + 4

• y = x - 4

• y = -x + 4

• y = 2x + 8