Question 1

What is the 'change in x' and 'change in y' for the line as shown in the picture?

Select and check your answer...

A. change in x = 6, change in y = 4
B. change in x = 4, change in y = -6
C. change in x = 4, change in y = 6
D. change in x = -4, change in = -6

First, you 'run' to the right. This gives:

      change in x = 4 - 0
                      = 4 units

Note: Remember to always 'run' first.

Now, you climb up. This gives:

     change in y = 0 - (-6)
                     = 0 + 6
                     = 6 units

Note: The 'change of y' is always a positive number. This means that you can only climb up.

From Step 1 and Step 2, you get:

1. change of x = 4 units
2. change of y = 6 units

Therefore, the answer is C.