It is a relation but not a function
Step-by-step explanation:
Given
(3,6) (3,7) (-2,-5) (-9,11)
First of all we have to define both terms: Relation and Function
A relation is a set of ordered pairs containing one element from each set
A relation can be a function only if there is no repetition in domain i.e. no first element in each ordered pair should be repeated.
In the given set of ordered pairs, they are relation as all the ordered pairs have two values.
While the given relation is not a function, as there is repetition in first elements of two ordered pairs i.e. 3 is repeated in (3,6) (3,7)
Hence,
It is a relation but not a function
Keywords: Functions, Relations
Learn more about functions at:
#LearnwithBrainly
We can find this using the formula for arc length (where 
is the radius of the circle and 
is the central angle in radians):
In our problem, we are given 
. This means that:
The measure of the angle is 1.5.
90 cm because ................................
Answer:
Step-by-step explanation:
A is a subset of B while B is the universal set.
AB = A U B
A is a subset of B. That is A is contained in B.
Answer: 2nd option
Step-by-step explanation:
