Exponential functions > Exponents and powers
12345Exponents and powers

Solutions to the exercises

Exercise 1
a

1 17 3

b

1 8

c

3 4

d

49

e

4 3

Exercise 2
a

1 x

b

1 x

c

x 3 4

d

x x 3 4

e

3 x x

f

1 2 x 2 x 3 4

Exercise 3
a

x -2 1 2

b

1 3 x - 1 4

c

1 2 x 1 2

d

1 2 x -1 1 2

e

27 x 4 1 2

Exercise 4
a

( 2 3 ) 2 = 2 6 = 64

b

2 5 = 32

c

2 2 = 4

d

( 10 3 ) 1 3 = 10 1 = 10

e

( 10 3 ) 1 3 = 10 1 = 10

f

7 1 = 7

g

( 5 4 ) 1 4 = 5 1 = 5

h

( 2 2 ) 2 1 2 = 2 5 = 32

Exercise 5
a

Keep trying until you solved it!

b

Keep trying until you solved it!

c

Keep trying until you solved it!

d

Keep trying until you solved it!

e

Keep trying until you solved it!

f

Keep trying until you solved it!

Exercise 6
a

f ( x ) = 3 2 x

b

f ( x ) = 0,25 2 x

c

f ( x ) = 1 9 9 x

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