AnswersNY-Algebra I Term 1 HillcrestThe Square Root Function

The Square Root Function — Unit test Answers

13 verified answers
1
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Which of the following best describes how the y values are changing over each interval?xy122438416532

A
They are increasing by 2 each time.
B
They are increasing by 4 each time.
C
They are being multiplied by 2 each time.
D
They are being multiplied by 4 each time.
2
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Which function represents exponential growth?

A
f(x) = 3x
B
f(x) = x3
C
f(x) = x + 3
D
f(x) = 3x
3

Which times and distances are represented by the function? Select three options.

A
The starting distance, at 0 hours, is 300 miles.
B
At 2 hours, the traveler is 725 miles from home.
C
At 2.5 hours, the traveler is still moving farther from home.
D
At 3 hours, the distance is constant, at 875 miles.
E
The total distance from home after 6 hours is 1,062.5 miles.
4

An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the range to include negative numbers?

A
A whole number constant could have been added to the exponential expression.
B
A whole number constant could have been subtracted from the exponential expression.
C
A whole number constant could have been added to the exponent.
D
A whole number constant could have been subtracted from the exponent.
5

Which is the graph of g(x)?g(x) =

Question illustration
A
Option
B
Option
C
Option
D
Option
6

Nina graphs the function y=⌊x⌋ to learn the properties of the parent floor function.What is the value of y when x=5.7?

A
5
B
5.50
C
5.75
D
6
7

The function f(x)= – is shown on the graph.

Question illustration
A
The range of the graph is all real numbers greater than or equal to 0.
B
The domain of the graph is all real numbers greater than or equal to 0.
C
The range and domain of the graph are the same.
D
The domain of the graph is all real numbers.
8

Adita has two options for how to invest $1,000.Plan A: Put the $1,000 in an account that pays $100 per year.Plan B: Put the $1,000 in an account that pays 5 percent interest per year.Which statement is true?

A
Plan A will be worth more than plan B after two years.
B
Plan A will be worth the same amount as plan B after one year.
C
Plan B will be worth more than plan A after three years.
D
Plan B will be worth more than plan A after four years.
9

If f(x) = , what is f(7.6)?

Question illustration
A
3
B
3.5
C
3.8
D
4
10

two

T
The function g(x) is defined for all real numbers x.
T
The maximum value of the range is 4.
T
The maximum value of the domain is 3.
T
The range of g(x) is {y| –1 < y ≤ 4}.
T
The domain of g(x) is {x| –4 < x ≤ 3}.
11

Which is the graph of the piecewise function f(x)?f(x) =

Question illustration
A
Option
B
Option
C
Option
D
Option
12

Which statement is true about the function f(x) = ?

Question illustration
A
It has the same domain as the function f(x) = .
Option A
B
It has the same range as the function f(x) = .
Option B
C
It has the same domain as the function f(x) = .
Option C
D
It has the same range as the function f(x) = .
Option D
13

The graph represents the cost of catering a dinner as a function of the number of guests.

Question illustration
A
$400
B
$600
C
$700
D
$800
14

Which is the graph of the function f(x) =

Question illustration
A
Option
B
Option
C
Option
D
Option
15

The function g(x) is defined as shown.

Question illustration
A
−2
B
−1
C
3
D
6

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