Question

B right?

Answer 1

yeah good

Answer 2

just look at the +3 at the end - what direction does that shift the graph? up/down/left/right?

Answer 3

C

Answer 4

adding that + 3 to the end counts as which type of transformation?

Answer 5

D

Answer 6

notice how the function takes f(x) = x^2 and changes it to x^2 + 3? that's a vertical shift up by 3 units, so B

Answer 7

A

Answer 8

good

Answer 9

I got something a little different

start by calculating the slope of 2x - 3y = 5 by converting this to y = mx + b form

Answer 10

2/3

Answer 11

good, then the perp slope must be -3/2

that gives us

y = (-3/2)x + b, then we plug in the point (2,-1) to get

-1 = (-3/2)(2) + b

solve for b

Answer 12

2

Answer 13

good

then y = (-3/2)x + 2

re-write this equation in standard form, then you'll get one of the answer choices

Answer 14

Oh D?

Answer 15

awesome

Answer 16

b

Answer 17

careful, the length of the entire axis is twice the value of a, so 14 not 7

Answer 18

D

Answer 19

good

Answer 20

b

Answer 21

good

Answer 22

C

Answer 23

good

Answer 24

I believe you're supposed to use A = Pe^rt where P is the initial deposit, t is time, r is interest, A is final amount

Answer 25

1000(.06)(5)

Answer 26

don't forget the e

1000*e^(0.06*5) = ?

Answer 27

B

Answer 28

good

Answer 29

A

Answer 30

A is missing the entire 194 term

would be best to try factoring

Answer 31

D?

Answer 32

b

Answer 33

Ugh i dont want to guess

Answer 34

as a hint let's try re-writing the function as

y = -4x^2 + 56x - 196 + 2

then we subtract 2 from both sides to get

y - 2 = -4x^2 + 56x - 196

now try completing the square on the right side, leave the left hand side alone

Answer 35

OH C?

Answer 36

good, c

Answer 37

C

Answer 38

yup gd

Answer 39

C

Answer 40

c is a circle, this fails the vertical line test so its not a function

any other guesses?

Answer 41

D

Answer 42

D is a parabola that looks like this

this fails the vertical line test so it's a no go

Answer 43

B? :/

Answer 44

another vertical line fail, making A the only possibility