Question

PANIC MODE RN. I MAY NOT FINISH 9TH GRADE, PLEASE HELP :C

Answer 1

Well not a dive, profits on overpriced products vary from 5-10%. cause if your prices are higher you sell less but make more per sale.

Answer 2

Part A)

check the picture below

on what intervals is increasing?   well, increasing means, from-left-to-right is going up, and decreasing is from-left-to-right is going down, so, notice the vertex, goes up, reaches the vertex, goes back down... surely you can see the intervals


part B)

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby \begin{array}{llll} average\ rate\\ of\ change \end{array} \\\\\\ \begin{cases} x_1=3\qquad y_1=120\\ x_2=5\qquad y_2=60 \end{cases}\implies \cfrac{f(5)-f(3)}{5-3}\implies \cfrac{60-120}{5-3}$

is a negative slope, the graph is dropping, meaning, the profits are dropping, as a matter of marketing, the higher the price of the product, less and less people show up to buy it, thus, you sell less and less of the product and the profits take a dive.