Arkansas Department of Education Arkansas ATLAS Algebra I End-of-Course Assessment - Practice Exam

Arkansas Department of
Education Arkansas ATLAS
Algebra I End-of-Course
Assessment

,QUESTIONS & EXPLANATIONS 1252



Question 1
A task calls for “Comparing rates of linear growth versus exponential growth”. Which
area is the most direct match?
A. Data Distributions and Analysis
B. Understanding Functions
C. Exponential Expressions and Equations
D. Exponential Graphs and Behavior
Correct Answer: D

Full Explanation:
“Comparing rates of linear growth versus exponential growth” is most directly associated with
“Exponential Graphs and Behavior”. The distinguishing feature is the stated task, rather than the
related but different work represented by “Exponential Expressions and Equations”, “Data Distributions
and Analysis”, or “Understanding Functions”.



Question 2
A comparison must distinguish “Translating and describing the effect of transformations
on the parent quadratic function y=x” from “Analyzing the discriminant and the nature
of roots” without treating the two activities as interchangeable. Which statement does
that most accurately?
A. Both directly concern Linear Equations and Inequalities in One Variable, so the distinction can be
discarded
B. Both directly concern Data Distributions and Analysis, so the distinction can be discarded
C. The first directly concerns Quadratic Equations in One Variable; the second directly concerns
Quadratic Functions and Graphs
D. The first directly concerns Quadratic Functions and Graphs; the second directly concerns Quadratic
Equations in One Variable
Correct Answer: D

Full Explanation:
The meaningful distinction is between “Quadratic Functions and Graphs” and “Quadratic Equations in
One Variable”. Their respective activities are “Translating and describing the effect of transformations
on the parent quadratic function y=x” and “Analyzing the discriminant and the nature of roots”.
Combining the entries under an unrelated focus would lose rather than explain that distinction.




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,QUESTIONS & EXPLANATIONS 1252



Question 3
Two assignments require different focuses. The first concerns “Creating and solving
linear equations and inequalities in one variable”; the second concerns “Modeling
real-world constraints and scenarios using linear systems”. Which ordered pair is the
best match?
A. First: Linear Equations and Inequalities in One Variable; second: Linear Functions and Graphs
B. First: Systems of Linear Equations and Inequalities; second: Linear Equations and Inequalities in
One Variable
C. First: Linear Equations and Inequalities in One Variable; second: Systems of Linear Equations and
Inequalities
D. First: Exponential Expressions and Equations; second: Systems of Linear Equations and Inequalities
Correct Answer: C

Full Explanation:
“Creating and solving linear equations and inequalities in one variable” is most directly associated with
“Linear Equations and Inequalities in One Variable”. The second assignment concerns “Modeling
real-world constraints and scenarios using linear systems”, which is associated with “Systems of Linear
Equations and Inequalities”. Both positions must be correct; matching only one assignment is
insufficient.



Question 4
A model starts at 110 units and doubles at the end of each period. What value does the
model predict after three periods?
A. 660
B. 880
C. 440
D. 330
Correct Answer: B

Full Explanation:
Apply the doubling factor three times: 110 × 2 × 2 × 2 = 880. Adding a fixed amount each period
would be a different, linear model.




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, QUESTIONS & EXPLANATIONS 1252



Question 5
Which entry completes this parallel correctly? Bivariate Data and Modeling relates to
“Analyzing two-variable categorical data using two-way frequency tables and relative
frequencies”; Data Distributions and Analysis relates to which activity?
A. Analyzing two-variable categorical data using two-way frequency tables and relative frequencies
B. Creating and solving quadratic equations with real number solutions
C. Comparing the center and spread of two or more data sets
D. Simplifying algebraic expressions using laws of integer and rational exponents
Correct Answer: C

Full Explanation:
The completed relationship is “Data Distributions and Analysis” with “Comparing the center and spread
of two or more data sets”. It follows the same area-to-activity relationship as the first pair. Reusing
“Analyzing two-variable categorical data using two-way frequency tables and relative frequencies”
would simply repeat the first example.



Question 6
In a review distinguishing “Analyzing and Transforming Functions”, “Exponents and
Radicals”, “Data Distributions and Analysis”, and “Exponential Expressions and
Equations”, which assignment introduces a mismatch?
A. Determining appropriate statistics (center and spread) based on the shape of data distributions →
Data Distributions and Analysis
B. Constructing exponential equations from geometric sequences → Exponential Expressions and
Equations
C. Exploring transformations of parent functions → Exponents and Radicals
D. Rationalizing denominators → Exponents and Radicals
Correct Answer: C

Full Explanation:
“Exploring transformations of parent functions” should be associated with “Analyzing and Transforming
Functions” rather than “Exponents and Radicals”. The remaining choices match their activities to their
direct focuses. The issue is the incorrect association, not the legitimacy of the activity itself.




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