### Home > MC2 > Chapter 9 > Lesson 9.2.2 > Problem 9-55

A candy store’s specialty is taffy. Customers can fill a bag with taffy and the price is based on how much the candy weighs. The store charges *9-55 HW eTool* (Desmos)

Copy the table below and fill in the missing values. Add three more entries.

**Amount of taffy (ounces)****Price ($)**Try writing a proportion equation.

Solve for

.Graph the values in the table. Let

represent the number of ounces and*y*represent the price in dollars.Is this situation proportional? Explain your

**reasoning**.Does the price per ounce stay the same no matter how many ounces of taffy is bought?

Notice that the graph makes a straight line and intersects

. What is the slope of the line you graphed? What information does the slope tell you?

Slope can be defined as:

or The slope,

, tells you that the price of taffy per ounce is .

Complete the table in the eTool below to graph the points.

Click the link at right for the full version of the eTool: *9-55 HW eTool* (Desmos)