CHAPTER 1: SECTION 1.1
TABLE OF CONTENTS
End of Section Exercise Solutions..............................................................................................................1
END OF SECTION EXERCISE SOLUTIONS
1.1.1
(a)
f (1) 3 
(b)
f ( 1) 0.2 ï€ ï‚» ï€
(c)
f x( ) 1 
when x = 0 and x = 3.
(d)
f x( ) 0 
when x ≈ –0.8.
(e) The domain of f is
ï»ï€ ï‚£ ï‚£ 2 4 . x ï½
The range of f is
ï»ï€ ï‚£ ï‚£ 1 3 . y ï½
(f) f is increasing on the interval
ï»ï€ ï‚£ ï‚£ 2 1 . x ï½
1.1.2
(a)
f g ( 4) 2; (3) 4 ï€ ï€½ ï€ ï€½
(b)
f x g x ( ) ( ) 
when x = –2 and x = 2.
(c)
f x( ) 1  ï€
when x ≈ –3.4.
(d) f is decreasing on the interval
ï»0 4 . ï‚£ ï‚£x ï½
(e) The domain of f is
ï»ï€ ï‚£ ï‚£ 4 4 . x ï½
The range of f is
ï»ï€ ï‚£ ï‚£ 2 3 . y ï½
(f) The domain of g is
ï»ï€ ï‚£ ï‚£ 4 4 . x ï½
The range of g is
ï»0.5 4 .