Regentspractice0614.pdf - Part I Answer all 24 questions in...

Algebra I (Common Core) – June ’14
[3] [OVER]
Part I
Answer all 24 questions in this part. Each correct answer will receive 2 credits. No partial
credit will be allowed.
For each statement or question, choose the word or expression that, of those
given, best completes the statement or answers the question. Record your answers on your
separate answer sheet. [
48
]
Use this space for
computations. 1 When solving the equation 4(3 x
2
2) 9 8 x
2
7, Emily wrote
4(3 x
2
2) 8 x
2
16 as her first step. Which property justifies
Emily’s first step?
(1) addition property of equality
(2) commutative property of addition
(3) multiplication property of equality
(4) distributive property of multiplication over addition
2 Officials in a town use a function, C , to analyze traffic patterns.
C ( n ) represents the rate of traffic through an intersection where
n is the number of observed vehicles in a specified time interval.
What would be the most appropriate domain for the function?
(1) {… 2, 1, 0, 1, 2, 3, …} (3)
{
0,
1
__
2
, 1, 1
1
__
2
, 2, 2
1
__
2
}
(2) { 2, 1, 0, 1, 2, 3} (4) {0, 1, 2, 3, …}
3 If A 3 x
2
5 x 6 and B 2 x
2
6 x 7, then A B equals
(1) 5 x
2
11 x 13 (3) 5 x
2
x 1
(2) 5 x
2
11 x 13 (4) 5 x
2
x 1
O
O
O
3
2
5 6
2 2 6
7
3
2
5
6
2
2
6
7
5 2
11 13

Algebra I (Common Core) – June ’14
[4]
Use this space for
computations.
4 Given: y x 2
y 3 x 2
Which graph shows the solution of the given set of inequalities?
5 Which value of x satisfies the equation
7
__
3
(
x
9
___
28
)
20?
(1) 8.25 (3) 19.25
(2) 8.89 (4) 44.92
(1) (3)
(2) (4)
y
x
y
x
y
x
y
x
O

Algebra I (Common Core) – June ’14
[7] [OVER]
Use this space for
computations.
11 What is the correlation coefficient of the linear fit of the data shown
below, to the nearest hundredth ?
12 Keith determines the zeros of the function f ( x ) to be 6 and 5.
What could be Keith’s function?
6)
6)