Answer with explanation:
Cost of a Pencil = $ 0.25
Cost of a Eraser = $ 0.50
⇒Total Amount Spent on Pencil and Eraser < 3.
⇒Cost of x Pencil +Cost of y Eraser < 3
⇒ 0.25 x + 0.50 y < 3
[tex]\Rightarrow \frac{25 x}{100}+\frac{50y}{100}< 3\\\\\Rightarrow 2 5 x +50 y < 300\\\\\Rightarrow x +2 y < 12\\\\\Rightarrow \frac{x}{12}+\frac{2y}{12}<1\\\\\Rightarrow \frac{x}{12}+\frac{y}{6}<1[/tex]
⇒Put, x=0 and y=0,to know which side of the graph you have to shade.
0+0< 12⇒0< 12
Shade that part under line, which contains origin.
