Answer: (1, 3) can be removed so that the resulting graph represents a function.
Explanation: A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. Here, X = {-5, -4, -2, 1, 2, 5} Y = {-4, -3, -2, 1, 2, 3} Relation from X to Y : {(-5, -3), (-4, -4), (-2, 2), (1, -2), (1, 3), (2, 1), (5, -4)} This relation is not a function from X to Y because the element 1 in X is related to two different elements, -2 and 3 So, we have to remove either (1, -2) or (1, 3) in order to make this a function.
Mr.Jenkins has 48 paintbrushes and 60 tubes of paint to put into cups.
It is given that The greatest common factor for the number of paint brushes and the number of tubes of paint is equal to the number of cups Mr.Jenkins has.
First find the greatest common factor of 48 and 60.