Math Class 10 Chapter 6 MCQs Solution fbise
Math Class 10 Chapter 6 MCQs Solution
Tick the correct option.
(i)
If A = {-2, 0, 2} and B = {0, 2} and f : A→B is defined as f = {(-2, 2), (0, 0), (2, 0)} what type of function is f?
(a) into
(b) onto
(c) injective
(d) bijective
Correct option is (b)
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(ii)
If number of elements in set X is 3 and number of elements in set Y is 2, how many binary relations are possible from Y to X?
$$(a)\;4\\(b)\;6\\(c)\;2^6\\(d)\;2^9$$
Correct option is (c)
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(iii)
What is the domain of the relation g = {(1, 0), (2, 2), (3, 4)}?
(a) {0, 1, 2, 3}
(b) {0, 2, 4}
(c) {1, 2, 3}
(d) {0, 1, 2, 3, 4}
Correct option is (c)
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(iv)
What is the x-intercept of every point on y-axis?
(a) 0
(b) 1
(c) -1
(d) undefined
Correct option is (a)
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(v)
At what point will the graph of
$$y\;=\;2x^2-1$$
cuts y-axis?
$$(a)\;(\pm\frac1{\sqrt2},0)\\(b)\;-1\\(c)\;(0,\;-1)\\(d)\;(-1,\;0)$$
Correct option is (c)
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(vi)
If y = 2x – 1, what is
$$f^{-1}(x)$$
?
$$(a)\;\frac{1+y}2\\(b)\;2y\;-\;1\\(c)\;\frac{1+x}2\\(d)\;y\;+\;1$$
Correct option is (c)
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(vii)
If
$$f(x)\;=\;\frac12x,$$
what is
$$f^2(x)$$
?
$$(a)\;\frac1{4x}\\(b)\;\frac14x\\(c)\;2x\\(d)\;\frac14x^2$$
Correct option is (b)
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(viii)
If
$$y\;=\;\frac x{x\;-\;2},$$
for what value of x will the function become undefined?
(a) 0
(b) -2
(c) 2
(d) ±2
Correct option is (c)
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(ix)
Which of the following is an exponential function?
$$(a)\;{(\frac13)}^x\\(b)\;e^x\\(c)\;2^x\\(d)\;All\;of\;these$$
Correct option is (d)
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(x)
If
$$f(x)\;=\;\frac23x^2-5,$$
what is the value of f (-3)?
(a) 0
(b) 1
(c) -3
(d) -1
Correct option is (b)
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This is the end of Math Class 10 Chapter 6MCQs Solution fbise
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