Name:_________________________________
Weekly Assignment #6
Date:_______ Period:______
Ms. Anderle
Weekly Assignment #6
Answer each question below.
1. The expression (4 + i)2 is equivalent to:
2. If f(x) = (x – 3)2 and g(x) = 2x + 1, what is the value of (g ◦ f)(4)?
3. Which method of collecting data will most likely result in an unbiased random sample?
(1) Selecting every fourth senior citizen leaving a bank to complete a survey about
saving plans for college.
(2) Surveying teachers as they enter their school about the merits of the testing
program in the No Child Left Behind Act.
(3) Conducting a poll on the Internet about a tax rebate program in the state of Ohio.
(4) Selecting customers by the last two digits of their phone number to determine if they
have telephoned France.
4. What function is NOT one-to-one?
(1) {(7,7), (8,8), (10,10), (-1,-1)}
(2) {(4,0), (-3,0), (2,0), (8,1)}
5. Find the value of the expression:
(3) {(1,2), (2,4), (5,10), (3,5)}
(4) {(8,1), (4,2), (3,4), (1,8)}