Question

The following graph shows the relation between the number of plywood sheets and the price in dollars. The unit rate is dollars/unit

• A. 45
• B. 66.67
• C. 100

Answer 1

The correct option is B 66.67

Unit rate is the slope of the line.

To find the slope, take one point (30,200) on the line.

Slope = $\frac{y}{x}$

= $\frac{200}{30}$

= 66.666

Hence, the unit rate is 66.67 dollars/unit.