Which of the following is an example of nonrandom sampling?
a. using a calculator's random function to generate 12 numbers and using those numbers to choose 12 people from a numbered list.
b. sampling people with the last name anderson by randomly picking a person in the phone book with the surname anderson, then calling every twentieth anderson after that until you've call 15 people.
c. conducting a survey among the teachers at your school by asking your six favorite teachers.

1; 35 is the ratio

step-by-step explanation:

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)