Question

Fixed payment for 152 words is $25. From the given data, the rate of change will be cents/extra word.

• A. 2
• B. 3
• C. 4
• D. 6

Answer 1

The correct option is B 3

Here it is given that,
$\text{Initial value for 152 words}=\$25$
$=2500cents$


You know,
$\text{Rate of change = slope =}\frac{Changeiny}{Changeinx}$

Let us consider the points (162,31) and (178,79).

By putting the values from graph, we get:
$\text{Slope}=\frac{79-31}{178-162}$

$=\frac{48}{16}$

$=3$

∴ The rate of change is 3 cents/extra word.