Learning Task 2:
A. (a) Tell whether the given set of ordered pairs, table of values, arrow diagram or graph
is a function or simply relation. (b) Identify also the domain and range. (c) If it is a
function write the equation in function notation form.
8.
1. {(-2,-4), (-1, -3), (0, -2), (1,-1)}
2. {(4, 2)), (4, 0), (3, 3), (3, 5)}
3. {(-1,0), (0, 1), (1, 2), (2,3)}
х
-3
-2
2
3
olo
у
-2
-1
2
1
5.
х
1
5
3
NIN
1
3
5
у
9.
6. x
y
2
1
4
3
10.
7.
lit
A. (a) Tell whether the given set of ordered pairs, table of values, arrow diagram or graph
is a function or simply relation. (b) Identify also the domain and range. (c) If it is a
function write the equation in function notation form.
8.
1. {(-2,-4), (-1, -3), (0, -2), (1,-1)}
2. {(4, 2)), (4, 0), (3, 3), (3, 5)}
3. {(-1,0), (0, 1), (1, 2), (2,3)}
х
-3
-2
2
3
olo
у
-2
-1
2
1
5.
х
1
5
3
NIN
1
3
5
у
9.
6. x
y
2
1
4
3
10.
7.
lit
Answers & Comments
Answer:1. a. Function
b. D = (-2, -1, 0, 1} ; R ={-4,-3,-2,-1}
c. R = D - 2
2. a. Relation
b. D = {4, 4,3, 3} ; R = { 2, 0, 3, 5 }
3. a. Function
b. D = {-1, 0, 1, 2} ; R = { 0, 1, 2, 3}
c. R = D + 1
4. a. Function
b. D = -{4, -2, 0, 2, 4}; R = {-2,-1,0, 1, 2 }
c. y = x + 1
5. a. function
b. D = {1, 2, 3, 4, 5}; R= {1, 2, 3, 4, 5}
c. y = x
6. a. Relation
b. D = {2, 2, 4, 6, 6}; R = {1, 5, 1, 3, 5}
7. a. function
b. D= {x /x € R}; R = { y / y = 3}
c. y = 3
8. a. Relation
B . D = {x/ -4 < x < 2}, R = [y/-3<y<3}
9. a. Relation
b. D= ( all real numbers}
R= { all real numbers}
10. a. Function
b. D = {x/ x are real numbers}
R = {y/ y ≤ 3