Page 829 - Algebra 1

Practice
Identify the appropriate model for each of the following situations.
(Ex 4)
i. the height of an arrow that is shot upwards from the edge of a cliff
j. the number of radioactive particles remaining in a sample when, at the end of each hour, the number of radioactive particles is half of what it was at the beginning of the hour
k. the amount of money you can earn babysitting when you charge $5 per hour of babysitting
Distributed and Integrated
*1. Error Analysis Students were asked to write an equation that has a quadratic (119) parent function. Which student is correct? Explain the error.
*2. Identify the function family. (119)
Student A
f (x) = 2(x - 1)2 - 4
Student B
f (x) = 2x + 5
y
6
4
O
x
-4
-2
2
4
*3. Identify the function family. (119)
2
x
-2
2
4
-2
-4
*4. Write How can a parent function be used to graph a family of functions? (119)
*5. Interior Decorating A type of carpet sells for $12 per square foot. Installation is an (119) additional $500. A function can be written to determine the price for installing carpet in a square room with floor x feet in length. Identify the function family
and the parent function.
814 Saxon Algebra 1
y