A14 plot and interpret graphs (including reciprocal graphs and exponential graphs) and... Quiz: Pearson Edexcel Maths, Unit 2

The 20 questions

1. The reciprocal graph y = 6/x lies in which quadrants?

   • all four
   • first and second
   • second and fourth
   • first and third

2. On the graph of an exponential growth function, what happens as x increases?

   • oscillates
   • gets steeper
   • becomes flatter
   • stays constant

3. On a distance-time graph, what represents the speed?

   • y-intercept
   • area underneath
   • arc length
   • gradient

4. On a velocity-time graph, how do you find the distance travelled?

   • y-intercept
   • gradient
   • area under graph
   • maximum height

5. What does a horizontal line on a distance-time graph indicate?

   • accelerating
   • returning home
   • constant speed
   • stationary

6. On a velocity-time graph, what does the gradient represent?

   • displacement
   • total distance
   • speed
   • acceleration

7. As x becomes very large, the graph of y = k/x (k > 0) approaches

   • the x-axis
   • the y-axis
   • a steadily increasing line
   • the line y = k

8. Which equation is a reciprocal function?

   • y = 5x^2
   • y = 5x
   • y = 5^x
   • y = 5/x

9. A car moves at 20 m/s for 10 s on a velocity-time graph. The distance travelled is

   • 2 m
   • 200 m
   • 30 m
   • 20 m

10. A distance-time graph goes from (0, 0) to (2, 60). The speed is

    • 30 km/h
    • 120 km/h
    • 2 km/h
    • 60 km/h

11. Velocity falls from 15 m/s to 5 m/s over 5 s. The acceleration is

    • -2 m/s^2
    • 2 m/s^2
    • -0.5 m/s^2
    • -10 m/s^2

12. A population P = 100 x 2^t doubles each time unit. After t = 3, P is

    • 300
    • 800
    • 600
    • 200

13. For y = 12/x, the value of y when x = 4 is

    • 8
    • 0.75
    • 48
    • 3

14. For y = 10/x, the value of y when x = -2 is

    • 5
    • 20
    • -20
    • -5

15. A velocity-time graph is a triangle with base 6 s and height 10 m/s. The distance is

    • 30 m
    • 60 m
    • 16 m
    • 15 m

16. For y = 5 x 3^x, the value when x = 2 is

    • 75
    • 45
    • 15
    • 30

17. On a distance-time graph, the curve becomes steeper over time. This means the speed is

    • increasing
    • decreasing
    • zero
    • constant

18. A velocity-time graph rises linearly from 0 to 8 m/s over 4 s. The distance travelled is

    • 16 m
    • 32 m
    • 8 m
    • 4 m

19. Where does the graph of y = 12/x meet y = x + 1 for positive x?

    • x = 4
    • x = -4
    • x = 2
    • x = 3

20. A reciprocal graph y = k/x passes through (2, 5). The value of k is

    • 2.5
    • 7
    • 3
    • 10

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