Question

The cost to print a poster is $4 per square foot plus a $3 flat fee. George's teacher wants to print a poster for less than or equal to $25. Which graph shows all the poster sizes, in square feet, that George's teacher can have printed for less than or equal to $25?

Answer 1

Given data:

The flat fees is f=$3.

The cost per square foot is c=$4.

The expression for the total cost to print a poster is less than or equal to 25 is,

$\begin{gathered} f+cx\leq25 \\ 3+4x\leq25 \\ 4x\leq22 \\ x\leq5.5 \end{gathered}$

Thus, the first option for the graph is correct.