###
Algebra 1 PARCC Reviewer 18 (F-IF.5-1)

**Sub-claim: **A** **
The students solve problems involving the Major Content with connections to the Standards for Mathematical Practice

**Type of items:** Type 1

**Color Code:** Peach

**Evidence Statement Key:** F-IF.5-1

**Calculator: **Z

Y = Yes; Assessed on Calculator Section

X = Calculator is Specific to Item

N = No; Assessed on Non-Calculator Sections

Z = Calculator Neutral (Could be Calculator or Non-Calculator Sections)

**Point:** 1 each (1:26)

**Evidence Statement Text:**
Relate the domain of a function to a graph and, where applicable, to the quantitative
relationship it describes, limiting to linear functions, square root functions, cube root
functions, piecewise-defined functions (including step functions and absolute-value
functions), and exponential functions with domains in the integers. For example, if
the function h(n) gives the number of person-hours it takes to assemble n engines in
a factory, then the positive integers would be an appropriate domain for this
function.★
**Clarifications, limits, emphases, and other information intended to ensure appropriate variety in tasks:**
i) Tasks have a real-world context
**Sample Questions (taken from PARCC’s Practice Tests and Released Items):**
Paper Test, Unit 2, Item 25

**1. Paper Test, Unit 2, Item 25**
A local theater sells admission tickets for $9.00 on Thursday nights. At capacity, the theater holds 100 customers. The function M(n)=9n represents the amount of money the theater takes in on Thursday nights, where n is the number of customers. What is the domain of M(n) in this context?
A. all whole numbers
B. all non-negative rational numbers
C. all non-negative integers that are multiples of 9
D. all non-negative integers less than or equal to 100

**Answers:**

*...to be posted soon*

**Reference: **

PARCC. (n.d.). Retrieved January 13, 2017, from http://www.aps.edu/assessment/parcc