Lesson T2.4.5
T2.4.5 Reading piece-wise, exponential and reciprocal graphs Quiz: KS3 Maths, Unit 2
20 questions
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Lesson T2.4.5, Reading piece-wise, exponential and reciprocal graphs: 20 multiple choice questions for the KS3 Maths (National Curriculum), Unit 2: Algebra, written with Revision Ninja.
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The 20 questions
-
What does a horizontal section on a distance-time graph mean?
- Stationary
- Constant speed
- Accelerating
- Returning home
-
A phone plan costs £10 for the first 100 minutes, then 5p per minute after that. What is the cost of 120 minutes?
- £11.00
- £6.00
- £10.20
- £12.00
-
A population starts at 100 and doubles every year. What is it after 3 years?
- 800
- 600
- 400
- 300
-
What is the value of y = 2ˣ when x = 0?
- 1
- 0
- 2
- 3
-
How does the exponential graph y = 2ˣ behave as x increases?
- Removes slope
- Falls steadily
- Rises faster
- Stays constant
-
What is the value of y = 1/x when x = 4?
- 0.25
- 0.4
- 0.5
- 4
-
What mathematical operation makes x equal to zero impossible in the reciprocal graph y = 1/x?
- Subtraction of zero
- Addition of zero
- Multiplication by zero
- Division by zero
-
In which quadrants does the graph of y = 1/x have its two curves?
- Quadrants 2 and 4
- Quadrants 3 and 4
- Quadrants 1 and 2
- Quadrants 1 and 3
-
A parking charge is £20 for the first hour and £5 for each extra hour. What is the cost for 3 hours?
- £30
- £35
- £25
- £20
-
A value starts at 80 and halves every year. What is it after 2 years?
- 40
- 20
- 10
- 160
-
What is the name for a straight-line graph that changes gradient at one or more points?
- A piece-wise linear graph
- A quadratic graph
- An exponential graph
- A reciprocal graph
-
As x gets very large, what value does the reciprocal graph y = 1/x approach?
- Infinity
- One
- Zero
- Negative one
-
What is the value of y = 3ˣ when x = 2?
- 6
- 8
- 9
- 5
-
A colony of 50 bacteria doubles every hour. How many are there after 4 hours?
- 100
- 800
- 400
- 200
-
On a distance-time graph, what does a steeper section represent?
- Zero distance
- Higher speed
- Constant speed
- Lower speed
-
Which point lies on the graph of y = 12/x?
- (3, 4)
- (3, 3)
- (2, 5)
- (4, 4)
-
When x equals 5, which function produces the larger value, y = 2ˣ or y = x²?
- They are equal
- y = x²
- Neither has a value
- y = 2ˣ
-
Where do the curve y = 1/x and the line y = x meet in the first quadrant?
- (0.5, 0.5)
- (4, 4)
- (1, 1)
- (2, 2)
-
A value starts at £200 and triples every year. What is it after 2 years?
- £1800
- £1200
- £900
- £600
-
Which equation describes a reciprocal graph?
- y = 6x
- y = 6 + x
- y = 6x²
- y = 6/x
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