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WorksheetsSet-Relations and Functions
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
A relation from A to B, is a subset of the Cartesian product B×A.
a)
False
b)
True
2.
The function f(x)=3x²-2x-5 is a
a)
Quadratic function
b)
Polynomial function
c)
Both above
d)
None of these
3.
If y is a function of x, then the domain is the set values of__________ and the range is the set value of _________
a)
x and y respectivelly
b)
y and x respectivelly
c)
Both above
d)
None of these
4.
If x is a function of y, then the domain is the set values of__________ and the range is the set value of _________
a)
x and y respectivelly
b)
y and x respectivelly
c)
Both above
d)
None of these
5.
Let f(x) with domain A, and g(x) with domain B, then the domain of f(x)+g(x) is
a)
A
b)
B
c)
AUB
d)
A∩B
6.
Which value can take b in the following function f(x)={(2,1),(3,5 ),(4,7),(-1,-3),(-2,-5),(b,-1)}
a)
2
b)
-1
c)
0
d)
4
7.
If f(x)=x2-1 and g(x)=x-2, then (f-g)(2) is
a)
3
b)
-3
c)
4
d)
-2
8.
If f(5)=8, and g(4)=5, then f(g(4)) is
a)
13
b)
3
c)
8
d)
5
9.
The domain of the function f(x)=(x+1)/(x2-3x+2) is
a)
{x/x∈ℝ, ∧ x≠1,2}
b)
{x/x∈ℝ, ∧ x≠-1,-2}
c)
(-1,-2)
d)
[-1,2]
10.
The domain of the function g(x)=√(x+1) is
a)
{x/x∈ℝ, ∧ x≠-1}
b)
{x/x∈ℝ, ∧ x≥1}
c)
{x/x∈ℝ, ∧ x≥-1}
d)
{x/x∈ℝ, ∧ x≠1}
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