Let A = {a,b}. Then number of one-one function from A to A possible are
1
2
3
4
Is this mapping a function or not a function?
A function
Not a function
f(x) = {(3,7), (4,2), (5, -1), (8,7)}.
Is f inverse x is a function?
Yes
No
Find the inverse of f(x) = -4x-12
F inverse x = 4x-3
F inverse x = -1/4x-3
F inverse x = 1/4x-3
F inverse x = -4x-3
Is the relation the function? Why?
Yes, because x-value 11 has two y-values paired with it.
Yes, because each x-value has only one y-value paired with it.
No, because x-value 11 has two y-value paired with it.
No, because each x-value has only one y-value paired with it.
Let R be the relation in the set N given by R= {(a,b); a = b-2, b>6}. Is the relation reflexive?
No
Yes
Let R be a relation on the set L of lines defined by l1 R l2 if l1 is perpendicular to l2, then relation R is
Reflexive and symmetric
Symmetric and transitive
Equivalence relation
Symmetric
Given set A ={1, 2, 3} and a relation R = {(1, 2), (2, 1)}, the relation R will be
Reflexive if (1, 1) is added
Symmetric if (2, 3) is added
Transitive if (1, 1) is added
Symmetric if (3, 2) is added
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