Answer
a.
verbal
b.
Input Description: fraction of relatives
Input Units: none
Output Description: chance of developing thyroid cancer
Output Units: percent
c.
function
d.
f
↓
Rule r
↓
r(f) percent
Work Step by Step
a. Because the representation is a word question, the question is verbal.
b. Because all that is said of input is that it relates to a fraction of his or her relatives there is no input units. But there an input description, fraction of relatives. The output description is found by looking at what is being contracted: thyroid cancer. And so the units would be the percentage of people who have contracted it.
c. The relation is a function because the input only has only one output either cancer or not.
d. Draw an input/output diagram of the data.
