Classify the relations according to whether or not they are functions. x = -3 y = 10 3x + 2x = 3 {(-2, 6), (-3, 7), (-4, 8), (-3, 10)}

Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?