Answer:
1 box of pencil cost 1 dollar and 1 box of pen cost 5 dollars
9514 1404 393
Answer:
C
Step-by-step explanation:
The graph is of the "greatest integer" (floor) function shifted up by 3 units. Hence the appropriate choice is C.
![y=\lfloor x\rfloor+3](https://tex.z-dn.net/?f=y%3D%5Clfloor%20x%5Crfloor%2B3)
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The greatest integer less than or equal to x for 0 ≤ x < 1 is 0, so the horizontal line segment at f(x)=3 indicates 3 has been added to the function.
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<em>Additional comment</em>
The brackets used for floor and ceiling functions only have horizontal bits below or above (respectively) the enclosed argument. The usual square brackets [ ] need explanation as to their meaning if they are intended to indicate one or the other of these functions.
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>:</em><em>)</em>