Everything Maths Grade 10

90 180 270 360

 3

 2

 1

1

2

3

f(x)

g(x)

C

B

D

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 ofg(x).

d)Evaluate:f(90◦)g(90◦).

20.Given the following graph:

90 180 270 360

 4

 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 ofg(x).

d)Evaluate:f(270◦)g(270◦).

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1.2FZ6 2.2FZ7 3.2FZ8 4.2FZ9 5.2FZB 6.2FZC 7.2FZD 8.2FZF

9.2FZG 10.2FZH 11a.2FZJ 11b.2FZK 11c.2FZM 11d.2FZN 12.2FZP 13a.2FZQ

13b.2FZR 13c.2FZS 13d.2FZT 13e.2FZV 13f.2FZW 14a.2FZX 14b.2FZY 15.2FZZ

16.2G22 17.2G23 18.2G24 19.2G25 20.2G26

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Chapter 6. Functions 207