Quiz

Grade 8: Linear equations, sequences and functions

10 questions with solutions for grade 8: linear equations and uses, sequences and the nth term, functions, linear functions, graphs and behaviour.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. Solve: 3x − 5 = 2x + 4Enter a number only

2. Solve: 2(x − 3) = x + 4Enter a number only

3. Solve: x/3 + 2 = 6Enter a number only

4. A number plus three times the number is 48. What is the number?Enter a number only

5. The nth term is 5n − 2. What is the 10th term?Enter a number only

6. The nth term of 7, 11, 15, 19, …?

A. n + 4

B. 7n

C. 4n + 7

D. 4n + 3

7. f(x) = 2x + 1. What is f(−3)?Enter a number only

8. What is the gradient of y = −3x + 2?Enter a number only

9. Where does y = 2x − 4 cross the x-axis (x = ?)Enter a number only

10. The linear function with gradient 3 through (0, 1)?

A. y = x + 3

B. y = 3x − 1

C. y = x − 3

D. y = 3x + 1