Consider u = {x|x is a negative real number).
which is an empty set?
{x|x eu and x has a negative cube root}
{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}

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x′y′z′, with vertices x′(4, -2), y′(4, -3), and z′(1, -4). the type of transformation that triangle xyz undergoes is a . triangle x′y′z′ then undergoes a transformation to form triangle x′y′z′, with vertices x″(4, 2), y″(4, 3), and z″(1, 4). the type of transformation that triangle x′y′z′ undergoes is a .