NAME: _________________________________
ALGEBRA 1 ASSESSMENT PERFORMANCE TASK (PT)
The cost of sending m text messages at $0.25 per message can be represented by the function
C(m) = 0.25m for Sprant company customers.
Part 1:
Part 2:
What is the independent variable?
___________________________________
What is the dependent variable?
___________________________________
Complete the table for the given domain values. Write the results as ordered pairs in
the form (independent variable, dependent variable).
Text Messages
Cost of Messages
M
c
Ordered Pair
0
50
100
200
1000
Part 3:
The independent variable is placed on the ____________________ axis.
The dependent variable is placed on the _____________________ axis.
Part 4:
Choose a beginning point, an end point, and a scale for the vertical axis (y-axis) on
the graph.
Beginning Point:
____________________
End Point:
____________________
Scale:
____________________
Part 5:
Graph the function by plotting the ordered pairs. Label the horizontal and vertical
axis. Title the graph.
Part 6:
Ramon sent 1500 text messages last month. Use function notation to represent the
cost with the Sprant company. Evaluate the function for that value. Include units.
Part 7:
Would it make sense to connect the points on the graph with a line? Why or why
not?
___________________________________________________________________
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Part 8:
Ramon wants to compare the total cost of 1500 text messages with Sprant or
Horizon.
● Check your answer to part 6 to confirm the Sprant cost for 1500 texts.
● “Horizon” wireless company offers 1000 texts for $10.00, however, the overage
fee is $0.75 per text sent beyond 1000.
Calculate and explain which company will cost Ramon the least for 1500 texts.
Be sure to show your work AND explain your reasoning.
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NAME: _________________________________
ALGEBRA 1 ASSESSMENT
EXTENDED RESPONSE (ER)
Tell whether each pairing of numbers describes a function. If so, identify the domain and
the range. If not, explain why not.
1.)
Each whole number from 0 to 9 is paired with its opposite. Show this relation in a table.
Is this relation a function? ____________________
If yes, identify the domain and range.
Domain:
______________________________
Range:
______________________________
If no, explain why the relation is not a function. ___________________________________
_________________________________________________________________________
2.)
Each odd number from 3 to 9 is paired with the next greater whole number. Show this
relation in a table.
Is this relation a function? ____________________
If yes, identify the domain and range.
Domain:
______________________________
Range:
______________________________
If no, explain why the relation is not a function. ___________________________________
_________________________________________________________________________
3.)
Each even number from 2 to 10 is paired with half the number. Show this relation in a table.
Is this relation a function? ____________________
If yes, identify the domain and range.
Domain:
______________________________
Range:
______________________________
If no, explain why the relation is not a function. ___________________________________
_________________________________________________________________________
NAME: _________________________________
ALGEBRA 1 ASSESSMENT
SELECTED RESPONSE (SR)
Which of the following expressions is equivalent to 6x + 12y - 15z? Analyze each answer
choice. Find the correct answer and demonstrate why it is correct. Demonstrate with mathematics
why the remaining distractors are incorrect.
a.)
3(x + 12y - 15z)
b.)
3(2x + 4y - 5z)
c.)
3(3x + 4y) - 5z
d.)
6(x + 2y - 3z)
e.)
15(x + y - z)