Part II:
1.
The function y=5x+10 represents the total cost y of a group of x members to go paintballing.
a.
What do the independent and dependent variables represent?
Independent variable:__________________________________________________
Dependent variable:___________________________________________________
b.
Your group has enough money for up to six members to go paintballing Find the
domain and range of the function.
Domain:______________________________
Range:________________________________
c.
2.
Is the function continuous or discrete for this situation? ____________________
Costanzo and Leffel are going to in-n-out to buy burgers and fries for one of their classes.
Burgers cost 3 dollars each, and fries cost 2 dollars. They have 180 dollars to buy the food.
The equation 3x+2y=180 (x is burgers and y is fries) represents this situation.
a. Graph the equation. Label the axes. Interpret the intercepts.
The y-intercept represents_______________________
_________________________________________
__________________________________________
The x-intercept represents _______________________
_________________________________________
__________________________________________
b. They decide to buy 30 burgers. How many fries can they order? Use the equation.
Number of fries they can order_______________________
3.
Let b(t) be the number of students at Grilly’s t hours after 11 A.M. Explain the meaning of
each statement.
a. b(1)=15________________________________________________________________________________
_________________________________________________________________________________________
b. b(3)=b(4)_____________________________________________________________________________
_________________________________________________________________________________________
c. b(k)=3_________________________________________________________________________________
_________________________________________________________________________________________
d. b(1)< b(2) _________________________________________________________________________________
_________________________________________________________________
4.
Match each absolute value function with its graph.
a. g(x)=|x-3|
b. g(x) = - |x –3|
c. g(x) = |x| +3
d. g(x) = 3|x-3|+1
e. g(x)= -3|x-3|+1
f. g(x)= -|x+3| - 3