8.1 Input-Output Tables Guided Notes

Explore! Independent or Dependent

In each relationship, underline the description of the quantity that is
independent of the other quantity.

a. the number of calories consumed and the number of apples eaten

b. the temperature outside and the number of people at the pool

c. the number of homework assignments completed and a grade in the class

d. the amount of money spent at SnoCap and the number of snow cones

purchased

Andrea reads three books each week during the summer. The equation represents
the total number of books Andrea has read (y) based on how many weeks have
passed (x). In this situation, the number of weeks that have passed is the
independent variable. The number of books she has read is the dependent variable
because it depends on the number of weeks that have passed.

Multiple Choice

What is the value for y when x = 0?

• $$y\ =\ \frac{1}{2}$$

• y = 10

• y = 3

• y = 5

Multiple Choice

What is the value for y when x = 3?

• y = 3

• y = 9

• y = 6

• y = 33