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Coordinate Plane Test Answer Key with Scoring – Grade 6

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Last updated: October 22, 2026 · Written by the Math Made Easy math teachers

Grade 6 Math Test Answer Keys – Mathbot, the Math Made Easy robot coach, with free printable test answer keys for Grade 6

Looking for a coordinate plane test answer key? Then this answer key gives the solutions and the scoring guide of the Grade 6 test on Plotting Points and Shapes on the Coordinate Plane. Use this answer key to score the test. Each solution identifies the matching coordinate, then the distance or reflection. Award partial credit for correct reasoning with a small slip.

Standards: 6.NS.C.6b, 6.NS.C.6c, 6.NS.C.8, 6.G.A.3 · Level: Grade 6

Question 2 Reflecting a point (2 points)

(a) The y-coordinate changes sign: (−9, −2).

(b) The x-coordinate changes sign: (9, 2).

Scoring: 1 point per part.

Question 3 Reading a graph (2 points)

xy−5−4−3−2−1123456−4−3−2−1123456P(−2, 4)R(5, −3)
P(−2, 4) and R(5, −3).

(a) P(−2, 4) and R(5, −3).

(b) P has − and +: Quadrant II. R has + and −: Quadrant IV.

Scoring: 1 point per part; both points must be right to earn the point.

Question 4 Distances (2 points)

(a) y matches; the x-values have different signs: 8 + 3 = 11 units.

(b) x matches; both y-values are negative: 10 − 4 = 6 units.

Scoring: 1 point per part.

Question 5 Triangle on the plane (3 points)

(a) A and B share y = −3: 4 + 2 = 6 units.

(b) B and C share x = 2: 3 + 2 = 5 units.

(c) Flip each x-coordinate: (4, −3), (−2, −3), (−2, 2).

xy−5−4−3−2−11234−4−3−2−11234A(−4, −3)B(2, −3)C(2, 2)
Triangle ABC (solid) and its reflection across the y-axis.

Scoring: 1 point per part.

Question 6 Camp map (3 points)

(a) Same x = −6: 3 + 5 = 8 blocks.

(b) Same y = 5: 6 + 4 = 10 blocks.

(c) 8 + 10 = 18 blocks.

Scoring: 1 point per part.

Question 7 Missing coordinates (2 points)

(a) The x-coordinate changes sign: a = −7.

(b) The fourth vertex has x = 2 and y = −5: (2, −5).

Scoring: 1 point per part.

Question 8 Decimal coordinates (3 points)

(a) − and +: Quadrant II.

(b) (−1.5, −2.5).

(c) (1.5, 2.5).

Scoring: 1 point per part.

Question 9 Order matters (1 point)

The first number is the horizontal move and the second is the vertical move. (11, −3) is 11 right and 3 down in Quadrant IV; (−3, 11) is 3 left and 11 up in Quadrant II.

Scoring: 1 point for a correct explanation that order or location differs.