How is 1/9 proportional to 1/4 and 1/5?

For the function, f(x) = -5x 2, find f(-4).

Use the graph of the sine function y=2sinθ shown below

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks