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8th ICSE
IMPORTANT
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All the elements of the domain in a relation must have images in the range.

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Important Questions on Relations and Functions

EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 1
In a function, an element of the domain can have at most two images in the range.
MEDIUM
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 1
In a function when there are 3 elements in the domain there can be only 3 elements in the range.
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 1
The domain and range cannot be interchanged in a relation.
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 2
Given f (x) = 2x - 1, then f(0) =_____
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 2
Given f(x)=3x-4, then the zero of the function is at x=_____
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 2
R=(a,b) : a=b+2, a∈1,2,3 then b ∈_____
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 2
R=(a, b) : a=b+1. Given b ∈4, 5, 6 then a ∈_____
EASY
8th ICSE
IMPORTANT
ICSE Skills In Mathematics>Chapter 22 - Relations and Functions>CONCEPT REVISION TEST-22>Q 2
A mapping is given as 'thrice the number decreased by 5. If the domain is 2, 3, 4 then the range is 1, 4, y, then y=_____