Math 9 · Unit 10: Graphs · Cambridge Lower Secondary Maths Stage 9

Questions

1. 1. Here is a linear function: y = 5x + 12. Copy and complete this table of values.

   Fill the blanks with these.

   • -17
   • 17
   • 22
   • 7
   • 60
   • 32
   • 24
   Check

2. 2. Where does the graph of y = 5x + 12 cross the y-axis?

   • (0, 5)
   • (0, 12)
   • (12, 0)
   • (5, 12)
   Check

3. 3. Is (5, 37) on the graph of y = 5x + 12, while (10, 74) is not?

   • Yes
   • No
   Check

4. 4. Here is a function: y = 0.2x + 10. Copy and complete this table of values.

   Fill the blanks with these.

   • -12
   • 10
   • 8
   • 18
   • 16
   • 14
   • -2
   • 20
   Check

5. 5. Where does the graph of y = 0.2x + 10 cross the y-axis?

   • (10, 0)
   • (0, 0.2)
   • (0, 10)
   • (−50, 0)
   Check

6. 6. The point (7, a) is on the graph of y = 0.2x + 10. What is a?

   • 10.7
   • 1.4
   • 17.2
   • 11.4
   Check

7. 7. Here is a function: x + y = 20. Copy and complete this table of values.

   Fill the blanks with these.

   • 20
   • 0
   • 15
   • 45
   • 5
   • -5
   • -15
   Check

8. 8. Where does the graph of x + y = 20 cross the axes?

   • (20, 20) only
   • (10, 10) only
   • (20, 0) and (0, 20)
   • (0, 0) and (20, 20)
   Check

9. 9. Here is a function: 2x + y = 10. Copy and complete this table of values.

   Fill the blanks with these.

   • 0
   • 12
   • -2
   • 10
   • 4
   • 22
   • 8
   Check

10. 10. The point (c, 3) is on the graph of 2x + y = 10. What is c?

    • 3.5
    • 2
    • 7
    • 4
    Check

11. 11. Here is a function: x + 3y = 12. Copy and complete this table of values.

    Fill the blanks with these.

    • 3
    • -1
    • 5
    • 12
    • 4
    • 9
    • 1
    • 6
    • 18
    Check

12. 12. Where does the graph of x + 3y = 12 cross the line x = 4.5?

    • (4.5, 7.5)
    • (4.5, 2.5)
    • (4.5, 1.5)
    • (2.5, 4.5)
    Check

13. 13. Here is a function: 3x + 2y = 18. Copy and complete this table of values.

    Fill the blanks with these.

    • 5
    • 18
    • 6
    • 9
    • 15
    Check

14. 14. Where does the graph of 3x + 2y = 18 cross the axes?

    • (6, 0) and (0, 9)
    • (9, 0) and (0, 6)
    • (3, 0) and (0, 2)
    • (18, 0) and (0, 18)
    Check

15. 15. Copy and complete this table of values for y = x² − 3.

    Fill the blanks with these.

    • -2
    • 3
    • 1
    • -3
    • -7
    • 6
    Check

16. 16. Is (5, 22) on the graph of y = x² − 3?

    • Yes
    • No
    Check

17. 17. Is (−9, 78) on a graph of y = x² − 3?

    • Yes
    • No
    Check

18. 18. Copy and complete this table of values for the function 3x + 4y = 36.

    Fill the blanks with these.

    • 8
    • 6
    • 12
    • 18
    • 36
    • 9
    Check

19. 19. For 3x + 4y = 36, what is y when x = 4?

    • 3
    • 6
    • 8
    • 9
    Check

20. 20. Here is a function: 6x + 5y = 60. Is the point (5, 6) on its graph?

    • Yes
    • No
    Check