Question

Candlelight Books kept a record of how its sales increased based on

Answer 1

Answer:

D

Step-by-step explanation:

We need to understand the meaning of slope. The slope means the rate of change of y with every unit change of x.

In our case, it will be rate of change of sales increase (%) with respect to unit change of discount(%).

The formula for slope is the change in y divided by change in x.

From the 2 points given, we can say that slope is:

$\frac{62-32}{20-10}=\frac{30}{10}=\frac{3}{1}$

This means "as discount increases 1%, sales increase by 3%". Option D is right.