What is the range of the function on the graph?

all real numbers
all real numbers less than or equal to -1
all real numbers less than or equal to 3
o all real numbers less than or equal to 0
-5-4 -3 -2 -1,1 2 3

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte