How to get properties of rational and irrational numbers?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?

Which of the following graphs could represent a cubic function?

Using the figure below, select the two pairs of alternate interior angles. a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7