Question # 1

p(x) = 2x⁴- 3x³+ 2x - 1 is polynomial of degree

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1

2

3

4

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quadratic function

constant function

trigonometric function

linear function

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0

1

-1

none of these

If y=f(x) is a function then y is called

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dependent variable

independent variable

constant

none of these

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0

1

none of these

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0

-4

none of these

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1

0

-2

3

A function of the form p(x)/Q(x) is called:

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Rational function

Logarithmic function

Exponential function

Hyperbolic function

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The curve f(x,y) = 0 has a central symmetry if

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f(-x,-y)=f(x,y)

f(x,-y)=f(x,y)

f(-x,y)=f(x,y)

f(-x,-y)≠f(x,y)

In common logarithm the base is

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1

0

10

e

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The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

In the function f: A⟶B, the elements of a are called

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Images

Pre-images

ranges

Parameters

What is range of the function g (x) =|x-3|?

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[0 ,∞ )

(0 ,∞)

(-∞ ,3]

[0,∞)

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image

pre-image

constant

none of these

For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?

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3a2

2a2

2a

-7a

f(x) = 2^x+ 3 . 2^2x+ 5 is

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trigonometric function

algebraic function

exponential function

logarithmic function

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0

-2

1

4

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0

1

1/2

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[0,1[

[0, 1]

]0, 1[

None of these

If f(x) = x²-x then f(1) is

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0

1

2

3

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f(x) = x²

f(x²) = x

f(x) = x

none of these

If f(x) = x²- x then f(-2) is

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4

6

2

0

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3/4

r

v

None of these

Composition of functions is

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Non-commutative (fg ≠ gf)

non-associative [8(fh) ≠(8f)h]

Commutative (fg = gf)

f of-1≠ 1

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sin h x

cos h x

tan h x

cot h x

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-2

-1

1

2

f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

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Mathematics ECAT Pre Engineering Chapter 17 Functions and Limits Online Test MCQs With Answers

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