Answer questions
on the subject of
SUBSTITUTION
Let’s Begin
TIW
2004
Question 1 for £100
If x = y2 and y = 7, what is x?
50:50
A. 49
B. 14
C. 42
D. 36
TIW
2004
Question 2 for £200
If x = y2 - 3 and y = 9, what is x?
50:50
A. 15
B. 81
C. 18
D. 78
TIW
2004
Question 3 for £300
If x = 3y2 and y = 2, what is x?
50:50
A. 30
B. 12
C. 42
D. 36
TIW
2004
Question 4 for £500
If x = y3 and y = 4, what is x?
50:50
A. 12
B. 48
C. 64
D. 16
TIW
2004
Question 5 for £1000
If x = y2 and y = -7, what is x?
50:50
A. 14
B. 49
C. -49
D. -14
TIW
2004
Question 6 for £2000
If x = y3 and y = -2, what is x?
50:50
A. -8
B. 6
C. 8
D. -6
TIW
2004
Question 7 for £4000
If x = y2 + 2y and y = 5, what is x?
50:50
A. 20
B. 25
C. 35
D. 30
TIW
2004
Question 8 for £8000
If x = y2 – 3y and y = 12, what is x?
50:50
A. 108
B. -12
C. 112
D. 84
TIW
2004
Question 9 for £16000
If x = y3 + y and y = -2, what is x?
50:50
A. -8
B. -10
C. 4
D. 6
TIW
2004
Question 10 for £32000
If x = 3y2 and y = -8, what is x?
50:50
A. 48
B. 184
C. 576
D. 192
TIW
2004
Question 11 for £64000
If x = 2y3 + 6 and y = -3, what is x?
50:50
A. -12
B. -60
C. -48
D. 60
TIW
2004
Question 12 for £125000
If x = 2- y2 and y = -1, what is x?
50:50
A. 3
B. 0
C. 1
D. 4
TIW
2004
Question 13 for £250000
If x = 2 – y3 and y = -1, what is x?
50:50
A. -1
B. 3
C. 5
D. 1
TIW
2004
Question 14 for £500000
If x = 10y - 10y2 and y = -4, what is x?
50:50
A. -160
B. -200
C. -120
D. -40
TIW
2004
Question 15 for £1MILLION
If x = 4y2 - 3y3 and y = -5, what is x?
50:50
A. 475
B. -65
C. -335
D. -275
TIW
2004
ASK THE AUDIENCE
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your whiteboard.
TIW
2004
£100
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2004
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2004
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2004
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2004
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2004
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2004
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2004
£8000
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2004
£16000
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2004
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2004
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2004
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2004
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2004
£500,000
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1 Million
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2004
£1,000,000
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2004
PHONE A FRIEND
Which student in class would you like to ask
for help?
TIW
2004
I’M SORRY
That is not the
correct answer!
TIW
2004