What is the range of the function on the graph?
5 4 3 2 O all real numbers O all real numbers less than or equal to -1 O all real numbers less than or equal to 3 O all real numbers less than or equal to 0 - -4 -3 -2 -1, 1 2 3 4 5 X -4
Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite