Question

http://prntscr.com/m2zpmq

Answer 1

@Vocaloid

Answer 2

any ideas? see which option tells you that a function is equal to the quotient of 2 polynomials

Answer 3

C?

Answer 4

good

Answer 5

http://prntscr.com/m2ztii

Answer 6

find any x-values that make the denominator equal to 0

Answer 7

so just plug in the numbers?

Answer 8

solve for x when (2x+4) = 0 and when (x-5) = 0.

Answer 9

-2 and 5

Answer 10

good so those are your solutions

Answer 11

http://prntscr.com/m2zw6f

Answer 12

again you need to solve for the x-values that make the denominator (x-2)(x+4) equal to 0

Answer 13

D?

Answer 14

good

Answer 15

http://prntscr.com/m2zxt5

Answer 16

any ideas? notice the graph is decreasing everywhere except the asymptote at x = 2

Answer 17

C?

Answer 18

good

Answer 19

http://prntscr.com/m2zyw2

Answer 20

any ideas? notice which half of the graph is above the x-axis, and what x-values it covers

Answer 21

B?

Answer 22

notice how the graph is only positive when x is less than 1

Answer 23

A?

Answer 24

good

Answer 25

http://prntscr.com/m2zzyn
http://prntscr.com/m30092

one question ^

Answer 26

i mean you just have to go through each table and see which points match up with the graph

for the first option, (-3,1.5) is not on the graph, so eliminate choice A
keep going with the other choices

Answer 27

make sure to check every point

Answer 28

not B either

Answer 29

not C either

Answer 30

hmm doesnt look like D tho

Answer 31

im stuck lol

Answer 32

check C and D again

Answer 33

C?

because D has (-4 and 1) and thats not on the graph

Answer 34

good C is the best fit for the graph

Answer 35

http://prntscr.com/m303i1

Answer 36

any ideas? which function is undefined for x = 3?

Answer 37

A?

Answer 38

not quite

which function has a denominator that is 0 when x = 3?

Answer 39

D?

Answer 40

good so D is your solution

Answer 41

http://prntscr.com/m305yw

Answer 42

"4 units to the left" so take the original function and add 4 to x only

Answer 43

B

Answer 44

that would be a shift up 4 units not left

add 4 to x, not the entire function

Answer 45

D?

Answer 46

good

Answer 47

http://prntscr.com/m30900

Answer 48

"shift 2 units up" so add 2 to the entire function

Answer 49

D

Answer 50

good

Answer 51

http://prntscr.com/m30gp9

Answer 52

again just set the denominator equal to 0 and solve for x

Answer 53

1/4 ?

Answer 54

the denominator not the numerator.

Answer 55

wouldnt it still be 1/4? orr

Answer 56

no its -1/5

Answer 57

good, -1/5 makes 5x + 1 equal to 0

Answer 58

http://prntscr.com/m30ibc

Answer 59

any ideas?

1. what's the least common multiple of 5 and 15?
2. what's the least common multiple of x and x^2?
put the solutions from #1 and #2 together

Answer 60

A?

Answer 61

good

Answer 62

http://prntscr.com/m30krf

Answer 63

any ideas? try factoring 5x + 15 and see what you can cancel out between the numerator + denominator

Answer 64

B?

Answer 65

good

Answer 66

http://prntscr.com/m30oyy
are these correct

Answer 67

yeah those are both good

Answer 68

http://prntscr.com/m30pp4

Answer 69

first one is good

for the second one you just have to remember your division rules

when dividing by a fraction, flip the second fraction and change the division sign to a multiplication sign

Answer 70

B?

Answer 71

good

Answer 72

http://prntscr.com/m30se0

Answer 73

again, flip the second fraction, change the division to multiplication, then cancel out any common factors