Answer:
Yes, the given relation {(-3, -7) (-2, -7) (4, -7) (5, -7)} is a function.
Step-by-step explanation:
Given the relation: {(-3, -7) (-2, -7) (4, -7) (5, -7)}
Domain is the set of all possible inputs of a relation i.e { -3, -2 , 4 , 5}
Range is the set of output values of a function i.e, {-7}
The mapping as shown below in the figure;
A function is a relation in which every element of the domain is matched to not more than one element of the range.
In other words, we can say that ,no value of x gets mapped to more than 1 value of y.
