What is the y-intercept in this situation?

Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?