7. whitley has a $5 gift card for music downloads. far
sa gift card for music downloads. each song costs $1 to download.
the amount of money left on the card can be represented by the function
md) = 5-d, where d is the number of songs she has downloaded.
a. make a table and graph the function.
m(d)
(d, m(d))
b. identify the domain and range of the function and the units of the
independent and dependent variables.