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post one at a time please

sorry

its positive so...

yes, the x-h matches up with x-3
h = 3

ohh ok i got it

it wouldn't be -3 tho?

no, think of it as like the opposite
h-3 ----> shift 3 units to the RIGHT

|dw:1443491690709:dw|

ohhhh ok!

|dw:1443491701434:dw|

here are the choices... the answer would be B then right?

Left 3 units
Right 3 units
Up 3 units
Down 3 units

oh so would the answer be B or A? @jim_thompson5910

like I said and drew, f shifts 3 units to the right

Oh thank you!

For the second, here are the choices

17.9 feet
18.2 feet
18.7 feet
19.1 feet

s is 0?

v is 35

yes on both

how do i solve without t though?

I'm going to replace every t in ` -16t^2 + 35t + 0` with x
so we have ` -16x^2 + 35x + 0`

do you see how ` -16x^2 + 35x + 0` matches up with `ax^2 + bx + c` ?

yes

so what do i plug in for x?

what are a,b,c equal to?

idk if i dont have the x values

do you want me to just do -16+35 cuz thats all we have

|dw:1443492881972:dw|

|dw:1443492905574:dw|

|dw:1443492921753:dw|

what are a,b,c equal to?

oh ok

-15

-15x2?

and 36x

and c?

so would it be -15x^2+36x+c?

a,b,c don't have any xs in them

a = -16
b = 35
c = 0
do you see how I'm getting this?

|dw:1443493159115:dw|

oh ok i was adding them

So would we plug in the max and min which would be 35 and 32 to the x's?

H(t) = -16(35/32)² + 35(35/32) = -19.141 which would be closest to D. Ok did i do it correctly?

are you familiar with the formula
h = -b/(2a)
??

yep

so you'll plug a = -16 and b = 35 into that formula to find h

tell me what h is

oh nvm, you already found h when you said 35/32

`H(t) = -16(35/32)² + 35(35/32) = -19.141` looks good

except that I get
-16(35/32)² + 35(35/32) = 19.140625

notice how the result is positive

yes I finally get how to do them now thank you.. i have a few more.

What is the domain of the following parabola?
A. All real numbers
B. x ≥ 1
C. x ≤ 2
D. y ≥ −3

tell me what you think

I think its all real numbers

why all real numbers?

i have no clue honestly i real don't know how to do it

so it was just a complete guess?

no I know that real numbers are both positve and negative so I thought it might be all real numbers

x=2

oh so C?? @jim_thompson5910

I think you're mixing up x and y

|dw:1443495131253:dw|

|dw:1443495141158:dw|

for each point, draw a vertical line until you hit the x axis
|dw:1443495166477:dw|

Negative and positive

@jim_thompson5910 im confused

you will find that every point on the parabola will fill up the entire x axis

so that's why the answer is the set of all real numbers

we can plug in any real number for x and get some real number out for y