AnswersJHS-Algebra 1A full yearZero and Negative Exponents

Zero and Negative Exponents — Cumulative exam Answers

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Which is the simplified form of ?

Question illustration
A
p
B
StartFraction 1 Over p EndFraction
Option B
C
0
D
1
2
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Which point is located at (5, –2)?

Question illustration
A
point A
B
point B
C
point C
D
point D
3

A line passes through the points (–2, –8) and (–4, –8). Which shows the graph of this line?

A
On a coordinate plane, a vertical line is at x = negative 2.
Option A
B
On a coordinate plane, a horizontal line is at y = negative 2.
Option B
C
On a coordinate plane, a vertical line is at x = negative 8.
Option C
D
On a coordinate plane, a horizontal line is at y = negative 8.
Option D
4

Over which interval are the exponential and linear function approximately the same?

Question illustration
A
from 0.25 to 0.5
B
from 0.5 to 0.75
C
from 0.75 to 1.0
D
from 1.25 to 1.5
5

Which function represents exponential decay?

A
f(x) =
Option A
B
f(x) =
Option B
C
f(x) = 4
Option C
D
f(x) = 4
Option D
6

A line of best fit is drawn for the set of points shown on the graph.

Question illustration
A
(23, 30)
B
(30, 38)
C
(44, 30)
D
(30, 72)
7

Consider the linear function that is represented by the equation and the linear function that is represented by the equation . Which statement is correct regarding their slopes and y-intercepts?

Question illustration
A
The function that is represented by the equation has a steeper slope and a greater y-intercept.
Option A
B
The function that is represented by the equation has a steeper slope, and the function that is represented by the equation has a greater y-intercept.
Option B
C
The function that is represented by the equation has a steeper slope, and the function that is represented by the equation has a greater y-intercept.
Option C
D
The function that is represented by the equation has a steeper slope and a greater y-intercept.
Option D
8

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.
9

Which equation represents the linear function that is shown on the graph below?

Question illustration
A
y = one-half x + 4
Option A
B
y = one-half x minus 2
Option B
C
y = 4 x minus 2
Option C
D
y = negative 2 x + 4
Option D
10

The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) + 0.8 where f(0) = 2.5. Which statement describes the sequence of numbers generated by the function?

A
The depth of snow was 0.8 inches when the storm began, and 2.5 inches after the first hour of the storm.
B
The depth of snow was 1.7 inches when the storm began, and 0.8 inches of snow fell each hour.
C
The depth of snow was 2.5 inches when the storm began, and increased by 0.8 inches each hour.
D
The depth of snow was 3.3 inches when the storm began, and 2.5 inches of snow fell in 1 hour.
11

What is the value of x in the equation , when y = 3?

Question illustration
A
x = 6
B
x = 7
C
x = 8
D
x = 9
12

Mrs. Jackson gives the table below to her students.

Question illustration
A
a = 22 because the rate of change is 1.
B
a = 20 because the rate of change is 3.
C
a = 22 because the rate of change is –1.
D
a = 20 because the rate of change is –3.
13

Line QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR?

A
y – 1 = 6x
B
y – 1 = 3x
C
y – 7 = 2x – 6
D
y – 7 = x – 2
14

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.
15

Which table represents a linear function?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
16

A coordinate plane with a line passing through the points (0, negative 1, 0) and (4, 0).

Question illustration
A
x – 4y = 4
B
x + 4y = 4
C
y = x – 1
Option C
D
y = –x – 1
Option D
17

Which linear function has the same y-intercept as the one that is represented by the graph?

Question illustration
A
y = 2 x minus 4
Option A
B
y = 2 x minus 3
Option B
C
y = 2 x + 3
Option C
D
y = 2 x + 4
Option D
18

Line MN passes through points M(4, 3) and N(7, 12). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?

A
–15
B
–9
C
3
D
9
19

Tanisha is graphing the function f(x) = 25()x. She begins by plotting the point (1, 15). Which could be the next point she plots on the graph?

Question illustration
A
(2, 9)
B
(2, –10)
C
(2, 14)
Option C
D
(2, 5)
20

At a glance, Kendra believes that the function represented on the graph is linear.

Question illustration
A
She can check to see if the rate of vertical increase equals the rate of horizontal increase between each pair of points.
B
She can check to see if the sum of each y-value and x-value in every ordered pair is the same.
C
She can check to see if the quotient of each y-value and x-value in every ordered pair is the same.
D
She can check to see if the rate of change between the first two ordered pairs is the same as the rate of change between the first and last ordered pairs.

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