Question 1

A function shows a relation between two quantities which are usually represented by variables x and y.

Accepted Answer

true

Answer

false

Question 2

The relation {(2,3), (4,5), (6,6)} is _________.

Accepted Answer

a function

Answer

not a function

Question 3

The relation {(4,5), (4,6), (5,5), (5,6)} is _________.

Accepted Answer

not a function

Answer

a function

Question 4

The relation {(-2,-2), (-1,-1), (0,0), (1,1)} is _________.

Accepted Answer

a function

Answer

not a function

Question 5

The relation {(6,7), (6,8), (7,7), (7,8)} is _________.

Accepted Answer

not a function

Answer

a function

Question 6

The relation {(-6,-6,), (-4,-4), (-2,-2), (0,0)} is _________.

Accepted Answer

a function

Answer

not a function

Question 7

If $f(x) = x-3$  and $g(x)=x+4$, then $(f-g)(x)=-7$

Accepted Answer

true

Answer

false

Question 8

If $f(x)=x+6$ and $g(x)=3x$, then $(f/g)(3)=1 $

Accepted Answer

true

Answer

false

Question 9

If $f(x)=4x-12$ and $g(x)=x-3$, then $(f+g)(2)=-5$

Accepted Answer

true

Answer

false

Question 10

If $f(x)=3x+2$ , then $(f)(3)=8$

Accepted Answer

false

Answer

true

Question 11

If $f(x)=x+3$ and $g(x)=4x$, then $(fg)(2)=40$

Accepted Answer

true

Answer

false

Question 12

If $f(x)=3x+2$ and $g(x)=4x-1$, then $(f-g)(3)=6$

Accepted Answer

false

Answer

true

Question 13

if $f(x) =  \sqrt{\ x}$ and $g(x)=x-4$, then $g((f(x))=f(g(x))$ for every $x$.

Accepted Answer

false

Answer

true

Question 14

The functions $f ∘ g$ and $f⋅g$ are always the same.

Accepted Answer

false

Answer

true

Question 15

Which of the following is the graph of $({ \frac {\ 1} {\ 3} )^x} ?$

Accepted Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/53686c3aef6289f240b27c9d7a470a38a80a981b.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/b804f559c41f1ccda661f35cf5183af7bc96e156.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/6808ba7b8e87300a50c50afc7622a2f3f20de4b4.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/ca6e659710888a5eedddc8c1a0f7db44633ada8c.png

Question 16

The picture shows the graph of $f(x) = ({ \frac {\ 1} {\ 2} )^x} $ shifted vertically upward. What is the equation of this graph$?$

Accepted Answer

$g(x) = ({ \frac {\ 1} {\ 2} )^x} + 3 $

Answer

$g(x) = ({ \frac {\ 1} {\ 2} )^x} + (-3) $

Answer

$g(x) = 3({ \frac {\ 1} {\ 2} )^x}  $

Answer

$g(x) = ({g( \frac {\ 1} {\ 2} )^x} - 3 $

Question 17

What is the horizontal asymptote of the graph shown in the photo?

Accepted Answer

$y = 3$

Answer

$y = 2$

Answer

$y = 4 $

Answer

$ y = +∞$

Question 18

What is the inverse of $y = x + 5 ?$

Accepted Answer

$ y = x - 5$

Answer

$y = { \frac {\ 5} {\ x} } $

Answer

$y = 5 - x$

Answer

$y = { \frac {\ x} {\ 5} } $

Question 19

What is the inverse of $y = 2x - 7 ?$

Accepted Answer

$y = { \frac {\ x+7} {\ 2} } $

Answer

$y = 2x + 7 ?$

Answer

$y = { \frac {\ x-7} {\ 2} } $

Answer

$y = { \frac {\ 2x} {\ 7} } $

Question 20

The picture shows the graph of $f(x) = ({ \frac {\ 2} {\ 3} )^x} $ shifted vertically downward by how many units$?$

Accepted Answer

2 units

Answer

3 units

Answer

4 units

Answer

1 unit

Question 21

The picture shows the graph of $f(x) = ({ \frac {\ 2} {\ 3} )^x} $ shifted vertically downward. What is the $y$-intercept? $

Accepted Answer

(0,-1)

Answer

(0,2)

Answer

(0,1)

Answer

(0,-2)

Question 22

The denominator of a rational function should not be equal to zero.

Accepted Answer

true

Answer

false

Question 23

What is the value of $(M+E)(4)$ if $M(x)=x^2+5x+4$ and $E(x)=x^2+2x-8 ?$

Accepted Answer

56

Answer

72

Answer

32

Answer

8

Question 24

Which of the following is the graph of a rational function?

Accepted Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/43cdaf207aa4d1e0b0d04ab6357346f64a17b83e.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/90c07e474b4f4ceb214418a07f2431ef185e828f.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/08b3d33e60d7d9ea9136aa6aabf7a6e971e994f7.jpg

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/c3475678ac93bb35514836695aefc7c9cd4c9923.png

Question 25

What is the trend of this graph?

Accepted Answer

Decreasing

Answer

Increasing

Question 26

Six squirrels began to gather hickory nuts and put them into a large basket. The squirrels worked so fast that the number of nuts in the basket was doubled at the end of every minute. The basket was completely full at the end of ten minutes. How many minutes has it taken the squirrels to get the basket half full?

Accepted Answer

9 minutes

Answer

3 minutes

Answer

7 minutes

Answer

5 minutes

Question 27

Which of the following is the graph of $({ \frac {\ 1} {\ 3} )^x} ?$

Accepted Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/53686c3aef6289f240b27c9d7a470a38a80a981b.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/b804f559c41f1ccda661f35cf5183af7bc96e156.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/ca6e659710888a5eedddc8c1a0f7db44633ada8c.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/6808ba7b8e87300a50c50afc7622a2f3f20de4b4.png

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