Question # 1

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0

-4

none of these

If f(x) = x²then f(0) is

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0

1

2

none of these

If a variable y dependents on a variable x in such a way that each value of x determines exactly one value of y, then we say that

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x is function of y

y is a function of x

y is independent variable

x is real valued function

if f(x) = x³ -3x² +5x -1, then f(-√2)=

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7+7√2

3+3√2

-7-7√2

-3-3√2

In common logarithm the base is

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1

0

10

e

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0

1

1/2

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x = f(y)

y = f(x)

x = f(x)

y = f(y)

Inverse of the function y-10x is

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y=logx

y=lnx

x=10y

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0

1

-1

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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0

1

-1

Graph of the question x²+ y²= 4 is

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A circle

An ellipse

A parabola

A square

Express the perimeter P of square as a function of its area A?

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P = 4√A

P =√A

P = 2A

P =π√A

f(x) = sin x + cos²x is

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trigonometric function

algebraic function

exponential function

logarithmic function

If f(x) = -x²then f(-2) is

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-2

2

-4

4

The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

The only function which is both even and odd is

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f(x) =α

f(x) = x

f(x) =0

Both A & B

For f(x) = x² + px +1, if f(3) = 3 then P =

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3/7

-2/5

-7/5

-7/3

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

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