Mcas Mathematics Test With Answer Key - Grade 7, 2014 Page 7
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17Mathematics
Session 1
Question 10 is an open-response question.
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BE SURE TO ANSWER AND LABEL ALL PARTS OF THE QUESTION.
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Show all your work (diagrams, tables, or computations) in your Student Answer Booklet.
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If you do the work in your head, explain in writing how you did the work.
Write your answer to question 10 in the space provided in your Student Answer Booklet.
ID:302340 LJM56_numberline.eps Common
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Ethan plotted points E, F, G, H, and I on a number line, as shown below.
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E
F
G
H
I
–10
–5
0
5
10
a. Which two points that Ethan plotted represent numbers that have a sum of 0? Show or
explain how you got your answer.
b. Write an equation using subtraction that could be used to find d, the distance, in units,
between point E and point I.
c. Solve the equation that you wrote in part (b). Show or explain how you got your answer.
Ethan wrote the expression below to represent the distance between point G and point H.
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6
d. What is the value of Ethan’s expression?
e. Explain how you know Ethan’s expression is equivalent to the distance between point G and
point H.
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