Question

Please Help

Is the function represented by the table linear or non linear and why?

x | y
------
2 | 10
4 | 9
6 | 8
8 | 7

A). The function is linear because all of the values on the table are positive.
B). The function is not linear because there is no x-value of 0.
C). The function is linear because it decreases at a constant rate.
D). The function is not linear because the x- values and y- values are increasing in
opposite directions

Answer 1

C). The function is linear because it decreases at a constant rate.

Explanation:

y changes by -1 every time x changes by +2. When the rate of change is constant, the function is linear.