PLS HELP ME! I HAVE NO IDEA HOW TO WORK THIS ;-; will mark brainliest!

Can someone me and plz do the problem

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5