Foundations Unit 2 Active Review #3-19

3. The boiling point of water, F, at altitude A is modeled by the function F= -0.0018a+212. In terms of altitude and temperature, which statement describes the meaning of the slope?

4. The function f(x)=37x+20 models the total cost for Rachel to be a member at a gym for x months.  What is the meaning of the slope in the equation?

5. What is the x-intercept for the function f(x)=12x-6?

6. The table shows the monthly paycheck for a car salesman for, x, cars sold. 

a) What is the average rate of change from 6 cards sold to 18 cars sold?

(a)  

6. The table shows the monthly paycheck for a car salesman for, x, cars sold. 

b) How much money would the car salesman make if he does not sell any cars in January?

(a)  

7. Let f(x)=2x+3 and g(x)be given by the graph.  Which statement is true?

8. Which function has the greatest rate of change from -1 to 4? Function A is given by the table and Function B is given by the graph.

9. The function f(x)is given in the table.  If g(x)=2x+1, what is the SUM of the y-intercepts for f(x) and g(x)? 

10. Inner Banks charges $13 plus $3 per hour to rent a boat.  Which equation represents the total amount for renting a boat at Inner Banks?

11. The Painted Peacock hosts painting classes and charges $15 admission, plus $1.25 per paint color used.  The shop lowered the cost-per-color charge by fifty cents.  Which equation could represent the new cost, C, of painting with p colors?