Inverse functions Problem set B Answers

1. (a) (1.10, 3)
2. (b) y = x

(1, 0), (7, 2), (10, 3), (16, 5)

1. (a) 9
2. (b) 3
3. (c) (9, 2)

1. (a) (0.699, 5)
2. (b) 5.00. The point \((0.699, 5)\) lies on \(y=10^x\), as the reflection should.

1. (a) 15
2. (b) 8. A fare of £19 is for a journey of 8 km.
3. (c) (23, 10)

1. (a) (52, 40)
2. (b) 52 dollars is £40. \(g^{-1}\) turns dollars into pounds.

1. (a) (5, 5)
2. (b) (5, 5). A point on the mirror line is its own reflection.