I’m stuck on these four problems can anyone help with any of them?
a.
Determine the number of times the graphs of and intersect for x between -5 and 5. Enter your answer as a simple number such as 0, 1, 2 etc.
(Hint: Graph both functions by placing one of them in Y1 and the other in Y2.)

b.
A breeding group of beavers is introduced into a protected area. After t years the number of beavers in the area is modeled by the function

1. How many beavers were initially introduced?
2. Estimate the number of beavers after 5 years.
3. Determine the change in the beaver population between t = 5 and t = 10.
(Note: All answers are whole numbers.)

1.

2.

3.

c.
Let . Match the output value on the left with the number of times that output value occurs for input values of x between -3 and 3.
Graph on your calculator in an appropriate window so you can count how many times.

Matching pairs

1- Select choice 4 or 3 or 1

-3- Select choice 4 or 3 or 1

2- Select choice 4 or 3 or 1
20- Select choice 4 or 3 or 1

-40- Select choice 4 or 3 or 1

D.
Graph the function for values of x from -5 to 5. Which of the following statements apply to the graph of f(x)? There may be more than one correct choice. Use the TRACE function to help you choice.

a. The y-values are always positive.

b. The y-values are positive when x is positive.

c. The y-values are all positive when x is negative.

d. The y-value at x = 0 is 0.

e. The y-value at -2 is -17.

f. The largest y-value for x between -3 and 3 is 58.

g. The smallest y-value for x between -3 and 3 is -58.

h. The y-values are all negative when x is negative