What would be the coordinates of point A given a dilation of scale factor 1/2 about the center of the image? (2, -4)

(1, -2)

(-2, 1)

(-4. 2)

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?