Math 7 · Unit 11: Graphs · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Copy and complete this table of values.

   Fill the blanks with these.

   • 3
   • 9
   • 4
   • 1
   • −3
   • −1
   • 5
   • 7
   Check

2. 2. These points are on the line y = x + 3: (3, ☐), (8, ☐), (−3, ☐) and (−9, ☐). What are the missing coordinates, in that order?

   • 0, 5, −6, −12
   • 4, 9, −2, −8
   • 6, 11, 0, −6
   • 6, 11, 6, 12
   Check

3. 3. The equation of a line is y = x + 1. Copy and complete this table of values.

   Fill the blanks with these.

   • 2
   • 1
   • −1
   • −4
   • 0
   • 5
   • 4
   • −2
   • 3
   Check

4. 4. The equation of a line is y = x + 1. Tick the 3 points that are on the line.

   Tick all the right answers.

   • ☐ (6, 7)
   • ☐ (−6, −7)
   • ☐ (10, 9)
   • ☐ (−10, −9)
   • ☐ (−0.5, 0.5)
   Check

5. 5. Copy and complete this table of values.

   Fill the blanks with these.

   • 3
   • 1.5
   • 6
   • −3
   • 0
   • 9
   • −2.5
   Check

6. 6. The point (8, ☐) is on the line y = 1.5x. Work out the missing coordinate.

   • 9.5
   • 12
   • 16
   • 5.3
   Check

7. 7. The point (☐, −15) is on the line y = 1.5x. Work out the missing coordinate.

   • 10
   • −13.5
   • −22.5
   • −10
   Check

8. 8. If you extend the graph of y = x + 7, where will it cross the x-axis?

   • (0, −7)
   • (0, 7)
   • (7, 0)
   • (−7, 0)
   Check

9. 9. Find the point where the line y = x + 7 crosses the line y = −7.

   • (−14, −7)
   • (0, −7)
   • (14, −7)
   • (−7, 0)
   Check

10. 10. Copy and complete this table of values.

    Fill the blanks with these.

    • 5
    • −2
    • −1
    • −5
    • 1
    • 11
    • −11
    Check

11. 11. The lines y = x − 5 and y = x + 5 are drawn on the same axes. How are the two lines related?

    • They are the same line.
    • They are parallel, 10 units apart on the y-axis.
    • They cross at (0, 0).
    • They are perpendicular.
    Check

12. 12. One kilogram of fruit costs $12. Copy and complete this table of values.

    Fill the blanks with these.

    • 72
    • 12
    • 13
    • 60
    • 1
    • 36
    • 24
    • 6
    • 48
    Check

13. 13. One kilogram of fruit costs $12. Copy and complete this name for the line: y = …

    • 12x
    • x + 12
    • 12
    • x ÷ 12
    Check

14. 14. One kilogram of fruit costs $12. Work out the cost of 2.5 kg and of 9 kg.

    • $30 and $108
    • $25 and $108
    • $30 and $96
    • $14.50 and $21
    Check

15. 15. This graph shows how to change miles to kilometres. Use the graph to copy and complete this table of values.

    Fill the blanks with these.

    • 64
    • 60
    • 16
    • 46
    • 48
    • 15
    Check

16. 16. Use the graph. How many miles are the same as 40 km?

    • 64 miles
    • 20 miles
    • 40 miles
    • 25 miles
    Check

17. 17. 50 miles = 80 km. How many kilometres are the same as 1 mile?

    • 16 km
    • 0.625 km
    • 1.5 km
    • 1.6 km
    Check

18. 18. m miles is the same as k kilometres. Which function shows the connection between m and k?

    • k = m + 30
    • k = 1.6m
    • m = 1.6k
    • k = m ÷ 1.6
    Check

19. 19. You can exchange 100 dollars for 250 riyals. How many riyals can you get in exchange for 40 dollars?

    • 160 riyals
    • 40 riyals
    • 100 riyals
    • 16 riyals
    Check

20. 20. You can exchange 100 dollars for 250 riyals. Copy and complete this table of values.

    Fill the blanks with these.

    • 80
    • 120
    • 50
    • 200
    • 40
    • 100
    • 150
    Check