Solve the system of equations
– 6x – 2y = 42 and x - y = –15 by combining the equation

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42