D = R=
Function?
Find the domain and range of each relation. Then, determine if the relation is a function.

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Ten times the square of a non-zero number is eqaul to ninety times the number