The variable m in slope intercept form represents the y- intercept ? True or false

X+ y = 5 ; x - y =3 solve using linear combination

Acircle has a circumference of 7.850 units. what is its radius?

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