Julie is making homemade greeting cards. The data table below represents the amount she spends in dollars f(x),
in terms of the number of cards she makes, X.
f(x)
0
Х
1
1
3.50
2.
6
3
8.5
4
11
a) Write a linear function, f(x), that represents the data.
b) Explain what the slope and y-intercept of f(x) mean in the
given context.