You can either make a graph or write a ratio to find the slope

Answer:
The slope is:
Step-by-step explanation:
Given the table
Pounds, x 3 4 5 6
Cost, y 6 8 10 12
Taking any two points let say (3, 6) and (4, 8)
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(3,\:6\right),\:\left(x_2,\:y_2\right)=\left(4,\:8\right)[/tex]
[tex]m=\frac{8-6}{4-3}[/tex]
Refine
[tex]m=\frac{2}{1}[/tex]
[tex]m = 2[/tex]
Therefore, the slope is: