Answers25-26 TX-Algebra II CRCumulative Exam

Cumulative Exam — Cumulative exam Answers

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Which graph represents ?

Question illustration
A
On a coordinate plane, a cubic function is shown. It has a point of inflection at x = negative 3 and it crosses the x-axis at x = negative 1.
Option A
B
On a coordinate plane, a cubic function is shown. It has a point of inflection at x = negative 3 and it crosses the x-axis at x = negative 5.
Option B
C
On a coordinate plane, a cubic function is shown. It has a point of inflection at x = 6 and it crosses the x-axis at x = 7.
Option C
D
On a coordinate plane, a cubic function is shown. It has a point of inflection at x = 6 and it crosses the x-axis at x = 5.
Option D
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The function y = – 3 is graphed only over the domain of {x | –8 < x < 8}. What is the range of the graph?

Question illustration
A
{y | –5 < y < 5}
B
{y | –5 < y < –1}
C
{y | 1 < y < 5}
D
{y | 1 < y < –1}
43

The graph of y = is a horizontal translation of y = . Which is the graph of y = ?

Question illustration
A
On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (2.5, 0), and goes through (10, 2).
Option A
B
On a coordinate plane, a cube root function goes through (negative 10, negative 2), has an inflection point at (negative 3, 0), and goes through (4, 2).
Option B
C
On a coordinate plane, a cube root function goes through (negative 10, 1), has an inflection point at (0, 3), and goes through (8, 5).
Option C
D
On a coordinate plane, a cube root function goes through (negative 8, negative 5), has an inflectoin point at (0, negative 3), and goes through (8, negative 1).
Option D
44

Which graph represents the function ?

Question illustration
A
On a coordinate plane, a hyperbola is shown. One curve opens up and to the right in quadrant 1, and the other curve down and to the left in quadrants 3 and 4.
Option A
B
On a coordinate plane, a hyperbola is shown. One curve opens up and to the left in quadrant 2, and the other curve opens down and to the right in quadrants 3, 4, and 1.
Option B
C
On a coordinate plane, a hyperbola is shown. One curve opens up and to the right in quadrant 1, and the other curve down and to the left in quadrants 2, 1, and 4.
Option C
D
On a coordinate plane, a hyperbola is shown. One curve opens up and to the left in quadrant 2, and the other curve opens down and to the right in quadrants 4 and 1.
Option D
45

Look at this image.Choose the function that represents the triangular numbers.

Question illustration
A
y = 0.5x + 0.5
B
y = 0.5x + 0.5x
C
y =
D
y = 0.5x2 + 0.5x
46

What are the potential solutions of

Question illustration
A
mc019-2.jpg
Option A
B
mc019-3.jpg
Option B
C
mc019-4.jpg
Option C
D
mc019-5.jpg
Option D
47

What is the difference?

Question illustration
A
StartFraction x squared + 4 x minus 1 Over x (x + 2) EndFraction
Option A
B
StartFraction x squared + 4 x + 1 Over x (x + 2) EndFraction
Option B
C
StartFraction 4 Over negative 1 (x squared + x minus 2) EndFraction
Option C
D
StartFraction x squared + 6 x + 1 Over x (x + 2) EndFraction
Option D
48

A lake near Susan’s house is predicted to lose water every day because of a drought. The table shows the estimated water depth in feet, y, after x days of drought.

Question illustration
A
y = −0.5x + 100
B
y = −x0.5 + 100
C
y = −0.5x2 + 100
D
Option
Option D
49

What is the solution to

Question illustration
A
mc014-2.jpg
Option A
B
mc014-3.jpg
Option B
C
mc014-4.jpg
Option C
D
mc014-5.jpg
Option D
50

Graph the function f(x) = x3 – 3x – 2. Based on the graph, which value for x is a double root of this function?

A
–2
B
–1
C
1
D
2

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