Page 190 - Mathematics_Form_3

Answers

x
3. Domain { :1x= ££ } 2 ; Exercise 2.4
⎧ 1 ⎫
Range = y : ≤ y ≤1 ⎬ 1. ()y = fx = - 3x + 6
⎨
⎩ 2 ⎭
4. Domain = { :xx ≥ } 0 2. ()fx = 2x + 5
FOR ONLINE READING ONLY
Range = { :yy ≥ } 0 3. ( ) = −2
1 7
{
() =
5. Domain = x:x ∈!}; 4. fx − 3 x + 3
Range= y: y ∈!} 5. ( ) = 4 +8
{

6. Domain = { :tt ∈ } 6. f (x) = 2
Range = { :yy ≥ } 2 7. y

{
7. Domain= t:t ∈!}; 4
3
Range { :yy= £ } 2
2 2 7
8. Domain = { :xx∈ } 1 1 f (x) = 4 − x
Range = { :yy ≤ } 4
-2 -1 0 1 2 3 4 x
9. Domain { :xx= ≠− } 4 -1

Range { :yy= ≠ } 0 -2

10. Domain = { :xx∈ } 8. y
Range = { :yy ≥− } 1 6

{
11. Domain = x:x ∈!}; 5
4
Range { :yy= = } 4
3
f(x)=5-x
12. Domain = { :xx ≠ } 3 2
Range = { :yy ≠ } 3 1 Mathematics for Secondary Schools

-1 0 1 2 3 4 5 x
13. Domain = { :xx ≠ } 5
-1
Range = { :yy ≠ } 2
 1 
14. Domain =  : xx ≥ 
 2 
Range = { :yy ≥ } 0

Student\s Book Form Three 183

18/09/2025 10:00:09
MATHEMATIC F3 SB.indd 183
MATHEMATIC F3 SB.indd 183 18/09/2025 10:00:09