Everything Maths Grade 10

46.

90 180 270 360

 3

 2

 1

1

2

3

f(x)

g(x)

D

C

B

A

x

y

a)State the coordinates atA; B; CandD.

b)How many times in this interval doesf(x)intersectg(x).

c)What is the amplitude off(x).

d)Evaluate:f(180◦)g(180◦).

47.

90 180 270 360

 4

 3

 2

 1

1

2

3

4

f(x)

g(x)

A

B

C

D

x

y

a)State the coordinates atA; B; CandD.

b)How many times in this interval doesf(x)intersectg(x).

c)What is the amplitude ofg(x).

d)Evaluate:g(180◦)f(180◦).

Chapter 6. Functions 229