Everything Maths Grade 10

2.Determine the equations for the graphs given below.

a)

 5  4  3  2  1 1 2 3 4 5

 8

 6

 4

 2

2

4

6

8

(2; 0)

(0; 2)

x

y

b)

 12  10  8  6  4  2 2 4 6 8 10 12

 12

 10

 8

 6

 4

 2

2

4

6

8

10

12

(1; 8)

(1;8)

x

y

3.Choose the correct answer:

a)The range ofy= 2sin+ 1is:

i. 1  2 ii. 2  2 iii. 1  3 iv. 2  3

b)The range ofy= 2cos 4 is:

i. 6  2 ii. 4  2 iii. 6  1 iv. 6  2

Chapter 6. Functions 213