Page 186 - Mathematics_Form_3

Answers

x
(b) x  ± x Domain = { :0x << } 3
 1 1  Range = { : 0y < y ≤ } 4
Range = −− , 0, , 1 
1,

 2 2 
} 0
11. (a) R = {( , ):xy x y+≤ 7, y ≥ x and x ≥ (c) y
FOR ONLINE READING ONLY
14
R = {( , ):xy x y+≤ 7, y ≥ x and x ≥ } 0
12
(b) R = {( , ):xy x y+ ≤ 6, x + ≥ y and y ≥ } 0 10 y=x+2
2
R = {( , ):xy x y+ ≤ 6, x + ≥ y and y ≥ } 0 8
2
6
(c) R = {( , ):xy y ≤ , xy ≥− 2and x ≤ } 8
4
R = {( , ):xy y ≤ , xy ≥− 2and x ≤ } 8 2 y =-x+10
12. (a) y -4 -2 0 2 4 6 8 10 12 x

4 -2 y=x -x-6
2
-4
3
-6
2
y=x y=x -2x
2
1 1
x
Domain = { : 4x −< < } 4
-1 00 1 2 3 4 x Range = { :0y < y < 14 }
-1
13 (a)
-2
y
Domain = { :0x << } 3 9
x
8
y
Range = { : 1y − ≤ < } 3 7
(b) y 6

5 5 y=x + 2
4
4 x=6
3
3
2
y=-x +4x 2 Mathematics for Secondary Schools
2
y=x 1
1
-3 -2 -1 0 1 2 3 4 5 6 6 x
-1
-1 00 1 2 3 4 5 x
-1
-2 Domain = { :xx < } 6
Range { :yy= < 8}

Student\s Book Form Three 179

18/09/2025 10:00:07
MATHEMATIC F3 SB.indd 179 18/09/2025 10:00:07
MATHEMATIC F3 SB.indd 179