What are some questions to ask about a function when sketching its graph?

Some questions are: 1) what is the y intercept (if there is one, 2) where are the x intercepts (if there are any), 3) is the graph even or odd, 4) is the graph exponential or linear, and 5) where does the graph end (if it doesn’t go on for infinity)

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)