Describe the variable yr_built. choose the correct answer below. a. the variable yr_built is quantitative, with units years. b. the variable yr_built is an identifier variable. c. the variable yr_built is categorical and ordinal. d. the variable yr_built is categorical and nominal.

A. The variable Yr_Built is quantitative, with units years.

Step-by-step explanation:

Since, Yr_Built means the year built, Also year has a numerical value like 2008, 2000, 1865, etc.

So, it is quantitative.

Further, Data is said to be quantitative if it has a numerical value.

Categorical data is that data which has categories. For example, Gender: It has two categories Female and Male.

The data which as ordering is called ordinal data. Example, Bad, Average, Good.

Identifier Variable is the variable that is used for identity. Example, Employee No., etc.

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8