Dependent and independent variables

Question

Use the equation y=2x+2 for this problem

 

a. Create an input/output table.

 

b. Graph the ordered pairs from the table

 

C. Describe each of the variables as the independent or the dependent variable.

Answer 1

a)

 

 

Here is the table setup

 

x        |        y = 2x + 2

_____________________

 

 

where:

x = input

y = output

 

 

Choose any value of x and evaluate y at that x value to complete the table.

 

 

b)

 

The values in the table result in the coordinate points (x, y).  Plot these coordinate points on a coordinate grid. 

 

 

c)

 

x = independent variable

y = dependent variable