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.
hi! when dividing fractions, we use the KCF rule, which stands for keep,change,flip. we keep the first fraction the same, change the division symbol to multiplication, and flip the second fraction to its reciprocal. therefore, we now have:
9/10 * 4/3
now, we can multiply the numerators and denominators.
