Answer:
Option D
Explanation:
Let y be the price of sandwich and x be the number of extra vegetables.
It is given that Sam bought a chicken sandwich with three extra vegetables for $5.25. It means the graph passes through the point (3,5.25).
Aaron bought a roast beef sandwich with five extra vegetables for $6.25. It means the graph passes through the point (5,6.25).
If a line passes through two points
and
, then the equation of line is

The line passes though the points (3,5.25) and (5,6.25), so the equation of line is



Add 5.25 on both sides.


Substitute x=0 in the above equation, to find the y-intercept.


y intercept for Mauryns word problem is (0,3.75).
Therefore, the correct option is D.