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Direct & inverse proportion
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Browse Direct & inverse proportion
42 questions at your level
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Level 1
Level 2
Level 3
Level 4
Level 5
Direct proportion
15 questions
Lesson
Not started
Mark as done
5
5
5
identical pens cost £
3.20
3.20
3.20
.
Work out the cost of
8
8
8
of these pens.
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Level 2
2 marks
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Mark as done
y
y
y
is directly proportional to
x
x
x
.
When
x
=
4
x = 4
x
=
4
,
y
=
18
y = 18
y
=
18
Work out the value of
y
y
y
when
x
=
10
x = 10
x
=
10
(3 marks)
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Level 2
3 marks
Start
→
Mark as done
y
y
y
is directly proportional to the square root of
x
x
x
.
When
x
=
9
x = 9
x
=
9
,
y
=
12
y = 12
y
=
12
Work out the value of
y
y
y
when
x
=
25
x = 25
x
=
25
(3 marks)
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Level 2
3 marks
Start
→
Proportion with squares, cubes and roots
14 questions
Lesson
Not started
Mark as done
y
y
y
is directly proportional to the square root of
x
x
x
.
When
x
=
9
x = 9
x
=
9
,
y
=
12
y = 12
y
=
12
Work out the value of
y
y
y
when
x
=
25
x = 25
x
=
25
(3 marks)
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Level 2
3 marks
Start
→
Mark as done
y
y
y
is directly proportional to
x
2
x^2
x
2
.
When
x
=
2
x = 2
x
=
2
,
y
=
12
y = 12
y
=
12
Work out the value of
y
y
y
when
x
=
5
x = 5
x
=
5
[3]
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Level 2
3 marks
Start
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