To determine the cost for 1 pencil, we need to look at the total cost and the quantity for the smallest pack available in the table. The smallest pack is 6 pencils at a cost of $1.50.
First, we find the cost of one pencil by dividing the total cost by the number of pencils:
\[ \text{Cost per pencil} = \frac{\text{Total Cost}}{\text{Quantity}} = \frac{1.50}{6} = 0.25 \]
Therefore, the cost for 1 pencil is $0.25.