Show your steps in evaluating each of the following expressions. the steps count 4 points each, the answer is 1 point. a. 15 - 35 / 7 -2 + 3 -4 b. 10 + 2(9 - 5) - 16 / 18

i am not sure :

step-by-step explanation:

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.