DEAMER A UNIT 1 REVIEW SUMMATIVE (4/14/2026)

$x$	$k(x)$
0	4
1	5
2	4
3	1
4	−4

1

The table shows values for a function $k$ at selected values of $x$. Which of the following claim and explanation statements best fit these data?

$k$ is best modeled by a linear function, because the rate of change over consecutive equal-length input-value intervals is constant.

$k$ is best modeled by a linear function, because the change in the average rates of change over consecutive equal-length input-value intervals is constant.

$k$ is best modeled by a quadratic function, because the rate of change over consecutive equal-length input-value intervals is constant.

$k$ is best modeled by a quadratic function, because the change in the average rates of change over consecutive equal-length input-value intervals is constant.

1

Let $g_n$ represent a geometric sequence where $g_3 = 8$ and $g_5 = 2$. What is the value of $g_8$?

$-7$

$\dfrac{1}{2}$

$\dfrac{1}{4}$

$\dfrac{1}{8}$

1

The figure shows a circle centered at the origin with an angle of measure $\theta$ in standard position. The terminal ray of the angle intersects the circle at point $S$. The coordinates of $P$ are $(12,5)$ and the radius of the circle is $13$. What is the value of $\sin \theta$?

$\sin \theta = \dfrac{12}{13}$

$\sin \theta = \dfrac{5}{13}$

$\sin \theta = -\dfrac{12}{13}$

$\sin \theta = -\dfrac{5}{13}$

1

In the $xy$-plane, the graph of a rational function $f$ has a hole at $x = -3$ and a vertical asymptote at $x = 2$. Which of the following could be an expression for $f(x)$?

$\dfrac{x+3}{x-2}$

$\dfrac{x-3}{(x-3)(x+2)}$

$\dfrac{(x+3)(x-2)^3}{(x+3)^2(x-2)^2}$

$\dfrac{(x+3)^3(x-2)}{(x+3)^2(x-2)^2}$

1

The table below gives selected values for the function $h$.
$x$
1
2
3
4
5
$h(x)$
824
330
132
53
21
Which of the following graphs could represent these data in a semi-log plot, where the vertical axis is logarithmically scaled?
(A)
(B)
(C)
(D)

Graph A

Graph B

Graph C

Graph D

1

Where both expressions are defined, which of the following is equivalent to $\dfrac{\sin(2x)\cdot\tan x}{\csc x}$?

$- \sin^4 x$

$2 \sin x$

$2 \sin^3 x$

$(\sin^2 x)(\tan x)$

1

A polynomial function $p$ is given by $p(x) = -x^{2}(x-2)(x+3)$. What are all intervals on which $p(x) < 0$?

$(-3, 0)$

$(-\infty, -3) \cup (2, \infty)$

$(-\infty, -2) \cup (3, \infty)$

$(-3, 0) \cup (2, \infty)$

1

A group of students wanted to see if there is a relationship between the number of students absent on a given day and the time of year. The students estimated the number of students that were absent over a period of time. Then, the students developed a linear regression model for the number of absences over time. The figure shows a graph of the residuals of the linear regression. Which of the following statements about the linear regression is true?

The linear model is not appropriate, because there is no apparent pattern in the graph of the residuals.

The linear model is not appropriate, because the graph of the residuals has more points below $0$ than above $0$.

The linear model is appropriate, because there is no apparent pattern in the graph of the residuals.

The linear model is appropriate, because the absolute values of the residuals are all less than $1$.

1

The figure shows the graph of the sinusoidal function $f(x) = a \cos\left(\frac{1}{2}x\right) + d$ in the $xy$-plane, where $a$ and $d$ are constants. Which of the following gives the value of $a \cdot d$?

$-12$

$-8$

$12$

$16$

1

A

B

C

D

1

linear

quadratic

cubic

quartic

DEAMER A UNIT 1 REVIEW SUMMATIVE (4/14/2026)

The table shows values for a function $k$ at selected values of $x$. Which of the following claim and explanation statements best fit these data?

Let $g_n$ represent a geometric sequence where $g_3 = 8$ and $g_5 = 2$. What is the value of $g_8$?

The figure shows a circle centered at the origin with an angle of measure $\theta$ in standard position. The terminal ray of the angle intersects the circle at point $S$. The coordinates of $P$ are $(12,5)$ and the radius of the circle is $13$. What is the value of $\sin \theta$?

In the $xy$-plane, the graph of a rational function $f$ has a hole at $x = -3$ and a vertical asymptote at $x = 2$. Which of the following could be an expression for $f(x)$?

The table below gives selected values for the function $h$.$x$12345$h(x)$8243301325321Which of the following graphs could represent these data in a semi-log plot, where the vertical axis is logarithmically scaled?(A)(B)(C)(D)

Where both expressions are defined, which of the following is equivalent to $\dfrac{\sin(2x)\cdot\tan x}{\csc x}$?

A polynomial function $p$ is given by $p(x) = -x^{2}(x-2)(x+3)$. What are all intervals on which $p(x) < 0$?

The figure shows the graph of the sinusoidal function $f(x) = a \cos\left(\frac{1}{2}x\right) + d$ in the $xy$-plane, where $a$ and $d$ are constants. Which of the following gives the value of $a \cdot d$?

The table shows values for a function $k$ at selected values of $x$. Which of the following claim and explanation statements best fit these data?

Let $g_n$ represent a geometric sequence where $g_3 = 8$ and $g_5 = 2$. What is the value of $g_8$?

The figure shows a circle centered at the origin with an angle of measure $\theta$ in standard position. The terminal ray of the angle intersects the circle at point $S$. The coordinates of $P$ are $(12,5)$ and the radius of the circle is $13$. What is the value of $\sin \theta$?

In the $xy$-plane, the graph of a rational function $f$ has a hole at $x = -3$ and a vertical asymptote at $x = 2$. Which of the following could be an expression for $f(x)$?

The table below gives selected values for the function $h$.$x$12345$h(x)$8243301325321Which of the following graphs could represent these data in a semi-log plot, where the vertical axis is logarithmically scaled?(A)(B)(C)(D)

Where both expressions are defined, which of the following is equivalent to $\dfrac{\sin(2x)\cdot\tan x}{\csc x}$?

A polynomial function $p$ is given by $p(x) = -x^{2}(x-2)(x+3)$. What are all intervals on which $p(x) < 0$?

The figure shows the graph of the sinusoidal function $f(x) = a \cos\left(\frac{1}{2}x\right) + d$ in the $xy$-plane, where $a$ and $d$ are constants. Which of the following gives the value of $a \cdot d$?

The table below gives selected values for the function $h$.
$x$
1
2
3
4
5
$h(x)$
824
330
132
53
21
Which of the following graphs could represent these data in a semi-log plot, where the vertical axis is logarithmically scaled?
(A)
(B)
(C)
(D)

The table below gives selected values for the function $h$.
$x$
1
2
3
4
5
$h(x)$
824
330
132
53
21
Which of the following graphs could represent these data in a semi-log plot, where the vertical axis is logarithmically scaled?
(A)
(B)
(C)
(D)