There's no way to know this without knowing the number of pencils he started with
The Answer should be 7.5
If you would like me to elaborate, let me know
We don't really have to put this in slope intercept form; it would clearly end up as
y = -4x + something
so we know the slope is -4.
Answer: C) -4
This is the answer not sure if you wanted it graph or not
