Penny's function has an output that is four more than three times the input. johns function expressed in slope-intercept form is y=3.5x-4
which of the following are true?

a. as the input increases, johns function is increasing and penny's function is decreasing.

b. as the input, johns function is decreasing while penny is increasing.

c. johns functions has a greater rate of charge, beacause 3.5> 3

d. pennys function has a greater relate of charge, beacause 4> 3.5