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Online Tests
ECAT Pre General Science Mathematics Chapter 17 Functions and Limits Online Test MCQs With Answers
Question # 1
The range of y=x2 + 1 is the set of non-negative real numbers except
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0≤ y < 1
0 < y < 1
0≤ y≤ 1
0 < y≤1
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Question # 2
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(1,7/3)
(1, 7/5)
(1, 11/7)
(1, 3/5)
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Question # 3
f(x) = 1 is
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identity function
constant function
linear function
quadratic function
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Question # 4
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One-one but not onto
One-one and onto
Onto but not one-one
Neither one-one nor onto
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Question # 5
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Question # 6
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image
pre-image
constant
none of these
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Question # 7
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Question # 8
f(x) = log x + 3 is a
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trigonometric function
algebraic function
exponential function
logarithmic function
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Question # 9
The range of the function f : x→ y is defined by
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{x| y = f (x) ∀x∈ X ∧y∈y}
{(x,y) |y = f (x)∀x∈ X}
{y|y = f (x) ∀x∈ X ∧y∈y}
Y
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Question # 10
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0
-4
none of these
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Question # 11
In natural logarithm the base is
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1
0
10
e
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Question # 12
If f(x) = x
2
then f(0) is
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0
1
2
none of these
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Question # 13
If f(x) = tan x then f(0) is
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0
1
1/2
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Question # 14
f(x) = ax + b will be an identity function if
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a = 1 , b = 1
a = 1 , b = 0
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Question # 15
______________ invented a symbolic way to write the statement "y is a function of x" as y= f(x)
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Leibniz
Newton
Euler
None of these
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Question # 16
Inverse of the function y-10x is
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y=logx
y=lnx
x=10y
x=10y
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Question # 17
Graph of the question x
2
+ y
2
= 4 is
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A circle
An ellipse
A parabola
A square
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Question # 18
The period sin
2
θ
is
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π
2
π
2
π
π/2
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Question # 19
f(x) = ax + b will be a constant function if
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a = 1 , b = 1
a = 1 , b = 0
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Question # 20
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Question # 21
If y=f(x) is a function then x is called
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dependent variable
independent variable
constant
none of these
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Question # 22
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sin h x
cos h x
tan h x
cot h x
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Question # 23
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Question # 24
A function F(x) is called even if
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F(x) = F (-x)
F(x) = F(-x)
F(x) = -F(x)
2F(x) = 0
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Question # 25
If f(x) = (-x)
2
then f(-2) is
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0
2
-4
4
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Question # 26
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0
3
9
-3
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Question # 27
A function in which the variable appears as exponent is called:
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An identity function
A logarithmic function
an exponential function
A rational function
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Question # 28
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2
6
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Question # 29
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quadratic function
constant function
trigonometric function
linear function
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Question # 30
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2
-2
none of these
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