Equations of lines test questions - WJEC - GCSE Maths Revision

1

What are the coordinates of the points marked on the grid?

A scatter graph with plotted points (x-4, y0), (x-3, y1) and (x4, y5).

(-4, 0), (1, -3), (4, 5)

(0, -4), (-3, 1), (5, 4)

(4, 0), (1, 3), (4, 5)

2

What is the equation of this line?

A graph with an x and y axis from -8 to 8, showing a solid horizontal line crossing y-3.

x = -3

y = 3

y = -3

3

What are the missing values in this table?

A table with 5 columns showing values for x and y = 5x - 2.

-18, -2

-22, -2

-22, 3

4

What is the gradient of the line y = -7x + 13?

-7

13

1

5

Where does the line 3y = 7x + 24 cross the y-axis?

y = 8

y = 24

y = 7

6

What is the gradient of this line?

2/3

3

1.5

7

How can you tell if two lines are parallel?

They have the same gradient

The product of their gradients is -1

They have the same \({y}\)-intercept

8

Are the lines \({y}\) = -5x + 15 and 5y + 20x = 10 parallel to each other?

Yes

No

Can't tell

9

How can you tell if two lines are perpendicular?

They have the same gradient

The product of their gradients is -1

They have the same y-intercept

10

Are the lines \({y}\) = 3\({x}\) – 1 and 9\({y}\) + 3\({x}\) = 18 perpendicular to each other?

Yes

No

Can't tell