AnswersAlgebra ICoordinate Plane

Practice Test Answers

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1
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What is the length of side XY as shown on the coordinate plane?

A
3 units
B
0 units
C
4 units
D
1 units
2
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Which expression can be used to find the area of the rectangle shown on the coordinate plane?

A
8 times 8
B
8 times 7
C
7 times 7
D
6 times 7
3

What is the endpoint of a line segment with these points? Endpoint: cap z times open paren negative 21 comma 15 close paren Midpoint: cap m times open paren negative 13 comma 29 close paren

A
open paren negative 29 comma 1 close paren
B
open paren negative 27 comma 21 close paren
C
open paren negative 17 comma 22 close paren
D
open paren negative 5 comma 43 close paren
4

Which equation can be used to determine the distance between the origin and open paren negative 2 comma negative 4 close paren ?

A
d is equal to square root of open paren 0 minus negative 2 close paren squared minus open paren 0 minus negative 4 close paren squared end root
B
d is equal to square root of open paren open paren 0 minus 2 close paren plus open paren 0 minus 4 close paren close paren squared end root
C
d is equal to square root of open paren 0 minus negative 2 close paren squared plus open paren 0 minus negative 4 close paren squared end root
D
d is equal to square root of open paren open paren 0 minus 2 close paren minus open paren 0 minus 4 close paren close paren squared end root
5

Find the coordinates of the midpoint of line segment mathrm cap k cap l with endpoints cap k times open paren negative 20 comma 3 close paren and cap l times open paren 12 comma negative 2 close paren

A
open paren negative 17 halves comma 5 close paren
B
open paren negative 4 comma 1 half close paren
C
open paren negative 16 comma 5 halves close paren
D
open paren negative 8 comma 1 close paren
6

Which best describes the accuracy of Carl’s solution?

A
Carl’s answer is correct, but he incorrectly labeled the leg lengths in step 2.
B
Carl’s work and answer are both entirely correct.
C
Carl’s work and answer are incorrect. He chose a vertex, cap v , that does not make a right triangle with MN .
D
Carl’s work and answer are incorrect. He substituted and solved incorrectly.

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