Penny’s function has an output that is four more than three times the input. John’s function expressed in slope-intercept form is y = 3.5x – 4.
Which of the following is true?
A. As the input increases, John’s function is increasing and Penny’s function is decreasing.
B. As the input increases, John’s function is decreasing and Penny’s function is increasing.
C. John’s function has a greater rate of change, because 3.5 3.
D. Penny’s function has a greater rate of change, because 4 3.5.

Question

Penny’s function has an output that is four more than three times the input. John’s function expressed in slope-intercept form is y = 3.5x – 4.
Which of the following is true?
A. As the input increases, John’s function is increasing and Penny’s function is decreasing.
B. As the input increases, John’s function is decreasing and Penny’s function is increasing.
C. John’s function has a greater rate of change, because 3.5 > 3.
D. Penny’s function has a greater rate of change, because 4 > 3.5.