Question

Help Please! Metal.

Write the quadratic function in vertex form.

y = x2 + 4x + 7
y = (x - 2)2 + 3 y = (x - 2)2 - 3 y = (x + 2)2 - 3 y =(x + 2)2 + 3

Answer 1

There are four options.

Answer 2

ok do know how to write general form?

Answer 3

@clairvoyant1

Answer 4

No.

Answer 5

which one do you what me to explain?

Answer 6

yes, please.

Answer 7

first I would use perfect sqaure property
y= x^2+4x+4+7-4

Answer 8

eventhough I added 4 I see that I subtract 4 right? So adding 4 really means nothing

Answer 9

I meant You*

Answer 10

y=(x-2)^2+3 so now you can factor
so the vertex is 2,3

Answer 11

Did you know how I got the vertex? @clairvoyant1

Answer 12

the factor (x-2) is nothing more than x=2. It is always the opposite of whats inside hope this help

Answer 13

although the 3 outside of the function is not affected so the sign does not change

Answer 14

A projectile is thrown upward so that its distance above the ground after t seconds is h = -16t2 + 672t. After how many seconds does it reach its maximum height?
21 s
31.5 s
42 s
10 s

Answer 15

I think the fuction you gave me is wrong I meant there should be a constant right? after 672t

Answer 16

in my graphing calculator it does not fall down. It goes all the way up

Answer 17

No, that's the problem.

Answer 18

so I believe the function is -16t^2+672t+t? when you say t seconds

Answer 19

I believe so.

Answer 20

ok give me a sec

Answer 21

Ok.

Answer 22

aw now i see the greatest seconds would have the greatest maximum! right!? lol is that easy

Answer 23

since its never fall down

Answer 24

21 s?

Answer 25

sorry i was wrong Now I got it

Answer 26

That's Ok, I'm really concerned about this problem.

Answer 27

Give an example of a rational function that has a horizontal asymptote of y = 2/9.

Answer 28

yes you were right 21s

Answer 29

You dope me! lol

Answer 30

yes!

Answer 31

That's like an Essay question.

Answer 32

Give an example of a rational function that has a horizontal asymptote of y = 2/9.

Answer 33

hmm so they were asking you a rational function

Answer 34

yea

Answer 35

ok this is an example of y= 2/3. the function is f(x)=(2x-11)/(3x+5)

Answer 36

basically the it's the coefficient of the function

Answer 37

Can you see that 2xWC divide by 3xWC WC means whocare

Answer 38

Lol, I see that clearly.

Answer 39

Yup :)

Answer 40

State the domain of the rational function.
f(x) = seven divided by quantity fourteen minus x.

Answer 41

State the domain of the rational function.
f(x) = seven divided by quantity fourteen minus x.

A) All real numbers except 14.
B) All real numbers except -14 and 14.
C) All real numbers except 7.
D) All real numbers except -7 and 7.

Answer 42

aw so we have to solve and what ever that is can not be equal to x.

Answer 43

\[f(x) = \frac{ 7 }{ 14-x}\]

Answer 44

so let me try to solve it

Answer 45

x can not be equal to 14

Answer 46

hold on though i wanna make sure we dont have to simplify 7 and 14

Answer 47

So all real number except 14?

Answer 48

yes

Answer 49

when they say state the domain, they are just really saying solve the dominator of the function

Answer 50

State how many imaginary and real zeros the function has.
f(x) = x5 + 7x4 + 2x3 + 14x2 + x + 7

3 imaginary; 2 real
4 imaginary; 1 real
0 imaginary; 5 real
2 imaginary; 3 real

Answer 51

c

Answer 52

does not have imaginary because theres no missing order of power
ya know what im sayin? lol

Answer 53

like the 5 4 3 2 1

Answer 54

Find the zeros of the polynomial function and state the multiplicity of each.

f(x) = 3(x + 8)2(x - 8)3

-8, multiplicity 2; 8, multiplicity 3
4, multiplicity 1; 8, multiplicity 1; -8, multiplicity 1
-8, multiplicity 3; 8, multiplicity 2
4, multiplicity 1; -8, multiplicity 3; 8, multiplicity 3

Answer 55

I had a hard time looking at the function was it the second power lol that confused me

Answer 56

That's Ok.

Answer 57

no i know it now

Answer 58

its a

Answer 59

the powers are count as multiplicity and the factors were zeros

Answer 60

Use the Rational Zeros Theorem to write a list of all potential rational zeros

f(x) = x3 - 10x2 + 4x - 24

+/-1, +/-2, +/-3, +/-4, +/-6, +/-8, +/-12, +/-24
+/-1, +/-One divided by two., +/-2, +/-3, +/-4, +/-6, +/-8, +/-12, +/-24
+/-1, +/-2, +/-3, +/-4, +/-24
+/-1, +/-2, +/-3, +/-4, +/-6, +/-12, +/-24

Answer 61

are they the answers? like abcde

Answer 62

yea

Answer 63

whatever is a multiplicity of 24 so

Answer 64

which one do you think Brittany? lol Thanks for being my fan love ya

Answer 65

"a" your awesome, where are u from?

Answer 66

Im from Florida How about you?

Answer 67

Florida!

Answer 68

wow! great! hope to meet someday lol

Answer 69

what school do you go to?

Answer 70

I'm in the orlando area, so are you in college?

Answer 71

nope Im still high school

Answer 72

senior I go to Monarch High have you ever heard of it?

Answer 73

Lol, me too. I go to Lake Brantley... every heard of it?

Answer 74

no lol

Answer 75

I haven't heard of Monarch I'll look it up right now. One Sec.

Answer 76

I came in fl when I was 14 so I have never heard of it

Answer 77

sure take your time

Answer 78

Oh ok. you should look up Lake Brantley, Check us Out.

Answer 79

I'm a Senior to Btw.

Answer 80

Yea i saw it. Its in orlando wow thats very far from me

Answer 81

Lol, yeah

Answer 82

Yay! haha

Answer 83

So are taking online classes?

Answer 84

you*

Answer 85

Yeah, a few.

Answer 86

so let's get this assignment done then we'll talk.

Answer 87

ok Im ready for you anytime :)

Answer 88

Lol ok, One Sec.

Answer 89

\[\frac{ 2x ^{3 }- 3x ^{2}- 5x + 4 }{ x - 2 }\]

Answer 90

Divide using synthetic division, and write a summary statement in fraction form.

Answer 91

I'm typing up the answer choices.