What are the answers to the June 2010 regents for integrated algebra?

Answer 1

Part I

(1)4 (9)2 (17)3 (25)4

(2)4 (10)1 (18)4 (26)4

(3)3 (11)3 (19)3 (27)2

(4)2 (12)3 (20)1 (28)4

(5)1 (13)4 (21)1 (29)2

(6)3 (14)3 (22)4 (30)1

(7)3 (15)2 (23)2

(8)3 (16)4 (24)1

Part II

(31) [2] 0.014, and appropriate work is shown.

[1] Appropriate work is shown, but one computational or rounding error is made.

or

[1] Appropriate work is shown, but one conceptual error is made, such as dividing

by 600.

or

[1] Appropriate work is shown, but the answer is expressed as a percent.

or

[1] 0.014, but no work 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.

(32) [2] 6a + 42 , and the distributive property is stated.

[1] 6a + 42 , but the property is not stated.

or

[1] The distributive property is stated, but the operation is not performed.

[0] A zero response is completely incorrect, irrelevant, or incoherent or is a correct

response that was obtained by an obviously incorrect procedure.

(33) [2] 37, and appropriate work is shown.

[1] Appropriate work is shown, but one computational or rounding error is made.

or

[1] Appropriate work is shown, but one conceptual error is made, such as using an

incorrect trigonometric function.

or

[1] A correct trigonometric equation is written, but no further correct work is

shown.

or

[1] 37, but no work 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.

[6]

Part III

(34) [3] 12 , and appropriate work is shown, such as solving the inequality or

substituting each value into the inequality and indicating its truth value.

[2] Appropriate work is shown, but one computational error is made.

or

[2] The inequality is solved correctly for x, but the required solution is not stated or

is stated incorrectly.

[1] Appropriate work is shown, but two or more computational errors are made.

or

[1] Appropriate work is shown, but one conceptual error is made.

or

[1] 􀀁12 , but no work 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.

(35) [3] Both equations are graphed correctly and at least one of the graphs is labeled,

and an appropriate explanation is given, such as the graph becomes wider.

[2] Both equations are graphed correctly and at least one of the graphs is labeled,

but no explanation or an incorrect explanation is given.

or

[2] One equation is graphed and labeled correctly, and an appropriate explanation is

given.

[1] Appropriate work is shown, but one conceptual error is made.

or

[1] One equation is graphed and labeled correctly, but no further correct work is

shown.

or

[1] An appropriate explanation is given, but no graphs are drawn.

[0] A zero response is completely incorrect, irrelevant, or incoherent or is a correct

response that was obtained by an obviously incorrect procedure.

(36) [3] An appropriate line of best fit is drawn, and "No," and an appropriate

justification is written.

[2] An appropriate line of best fit is drawn, and "No," but no justification or an

incorrect justification is written.

or

[2] The line of best fit is not drawn or is drawn incorrectly, but an appropriate

prediction is stated, and an appropriate justification is written.

[1] An appropriate line of best fit is drawn, but no further correct work is shown.

[0] "No," but no work is shown.

or

[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

(37) [4] 8/(3+x), and appropriate work is shown.

[3] Appropriate work is shown, but one computational, factoring, or simplification

error is made.

[2] Appropriate work is shown, but two or more computational, factoring, or

simplification errors are made.

or

[2] Appropriate work is shown, but one conceptual error is made, such as not

multiplying by the reciprocal.

or

[2] The expression is correctly written as a product and all numerators and

denominators are factored correctly, but no further correct work is shown.

[1] Appropriate work is shown, but one conceptual error and one computational,

factoring, or simplification error are made.

or

[1] All numerators and denominators are factored correctly, but no further correct

work is shown.

or

[1]

8/(3+x), but no work 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.

(38) [4] 30 students total are in the class, 20 students scored higher than 70, 71-80 is the

interval containing the median, and 81-90 and 91-100 are the intervals

containing the same frequency.

[3] Three of the four solutions are correct.

[2] Two of the four solutions are correct.

[1] One of the four solutions is correct.

[0] A zero response is completely incorrect, irrelevant, or incoherent or is a correct

response that was obtained by an obviously incorrect procedure.

(39) [4] Both equations are graphed correctly, and (2,0) and (4,12) are stated.

[3] Appropriate work is shown, but one computational or graphing error is made.

or

[3] Both equations are graphed correctly, but only one correct point of intersection

is stated.

[2] Appropriate work is shown, but two or more computational or graphing errors

are made.

or

[2] Appropriate work is shown, but one conceptual error is made.

or

[2] Both equations are graphed correctly, but the points of the intersection are not

stated or are stated incorrectly.

or

[2] (2,0) and (4,12), but a method other than graphic is used.

[1] Appropriate work is shown, but one conceptual error and one computational or

graphing error are made.

or

[1] One of the equations is graphed correctly, but no further correct work is shown.

or

[1] (2,0) and (4,12) are stated, but no work is shown.

[0] (2,0) or (4,12) are stated, but no work is shown.

or

[0] A zero response is completely incorrect, irrelevant, or incoherent or is a correct

response that was obtained by an obviously incorrect procedure.