Plz help me!! Plz only answer if you can help. Part A: What do the x-intercepts and maximum value of the graph represent?

Part B: What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit?

Part C: What is an approximate average rate of change of the graph from x= 1 to x = 3, and what does this rate represent?​

I uploaded the answer to a file hosting. Here's link:

cutt.ly/nz6VGda

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.