Preparing for the Regents Examination Geometry, AK

17 Score Explanation
4 51, and an appropriate explanation is given.
3 An appropriate method is used, but a single computational error is made.
2 An appropriate method is used, but multiple computational errors are made.
1 51, but no explanation is given.
0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response
that was obtained by an obviously incorrect procedure.
Part IV
For each question, use the specific criteria to award a maximum of 6 credits.
18 Score Explanation
3 a Slope −−−
DA
1 _ , slope
3 −−
2
AR _ , slope
3 −−
1
RT _ ,
3 −−
TD is a vertical line. Since
two sides have the same slope, −−−
DA −−
RT . DART is a trapezoid.
0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct
response that was obtained by an obviously incorrect procedure.
3 b AK TA, and an appropriate explanation is given.
0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response
that was obtained by an obviously incorrect procedure.
19 Score Explanation
3 a The following proof or another appropriate proof is given.
Statements Reasons
1. −−−
AD −−
BE 1. Given.
2. −−
AE −−
BD
3.
2. Given.
___
DE ___
DE 3. Reflexive property of congruence.
4. ADE BED 4. SSS SSS.
5. BDE AED 5. CPCTC.
1 BDE AED and a reason is given, but no appropriate method is shown.
0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response
that was obtained by an obviously incorrect procedure.
3 b The following proof or another appropriate proof is given.
Statements Reasons
1. −−−
AD −−
BE 1. Given.
2. −−
AE −−
BD 2. Given.
3. −−
AB −−
AB 3. Reflexive property of congruence.
4. ADB BEA 4. SSS SSS.
5. FAB FBA 5. CPCTC.
1 FAB FBA and a reason is given, but no appropriate method is shown.
0 A zero response is completely incorrect, irrelevant, or incoherent or is a correct response
that was obtained by an obviously incorrect procedure.
Chapters 1–10 121