Which of the following is not true about linear functions.
A. The highest power of a linear function is 1.
B. The graphs of linear functions are straight lines
C. Linear functions have a constant rate of change.
D. The graphs of linear functions always rise from left to right.
Answer D, "The graphs of linear functions always rise from left to right." is incorrect. If the rate of change is negative (something like y = -4x+7), the line would become more negative, or fall from left to right.
