Question

need help with graphing problems

Answer 1

https://picasaweb.google.com/100233949726156801693/DropBox?authkey=Gv1sRgCLbAqvj885W-xAE#5608554838612174530

Answer 2

I did send you befor, idi u recivered?

Answer 3

yea i got it but cant seem to get it is there any way u could do it the work so that i could graph them

Answer 4

let me check to see I still have that answer

Answer 5

ok

Answer 6

what nuber u need help?

Answer 7

on all of them

Answer 8

u havr graph paper?

Answer 9

yea

Answer 10

r u ok number 11?

Answer 11

check out Wolfram Alpha, e.g. http://www.wolframalpha.com/input/?i=y%3D2x%2B4

Answer 12

yea

Answer 13

let do 12)
frist find vertex x
x= (-b)/(2*a)
a=-4
b=8
x=(-8)/(2*-4*)
x=1
now sutitution x= 1 solve for y
y=-4(1)^2 +8(1) -7
y=-4+8-7
y=-3
( 1, -3)

Answer 14

-4x^2 the coefficient is nega tive tha the graph is open down , y is minimum
can u set table and graph?

Answer 15

ok

Answer 16

now u set table and send I check and I work on next number

Answer 17

cant really set table and show dont have camera right now

Answer 18

look number 11the table the root (-4,-4)
now number 12 u write midle line x=1 ,y=-3
up and down start next number
F(x)= flug x and solve y( look the sample I send u)
and graph on the grid paper

Answer 19

kind of get it but it will so helpful if you do them so i can check my answer getting late have to go to sleep school 2morrow

Answer 20

I working on 13)
ok u go sleep I will do all u can print tomorrow moning, u have a printer?

Answer 21

yea thank u so much

Answer 22

Ok save the line u can find faster,good night

Answer 23

soory save the link not line

Answer 24

if I set table can u do draw the graghp?

Answer 25

yea

Answer 26

great, night

Answer 27

I almost done number 13 if u want wait

Answer 28

here the table number 12 u check your answer an start darw the graph

Answer 29

14) x= 2
y= 1
grap down, y minimum
I will sent table

Answer 30

MY internt go slow I doesn't lrt me send I try many time

Answer 31

my computer keep frozen don't let me send I try many time

Answer 32

14) -2x^2+8x-7
f f(x)
---------------
0 -7
1 -1
2 1
3 -1
4 -7
here the table 14)

Answer 33

15) y= x^2 -2x+5
vertex x=-(-2)\2
x=2/2
x=1
y =4
x^2 positive than the graph open up and y is maximum
table:
x f(x)
-1 8
0 5
1 4
2 5
3 8
here number 15 include table

Answer 34

16) y= -x^2-4x
vertex: a=-1 , b= -4
x=-(-4)\(-1*2)
x = -2
plug x=-2 solve for y
y = 4
-x^2 coefficient is nega tive than the graph is open down , y is minimum
table:
x f(x)
-4 0
-3 3
-3 4
-1 3
0 0

Answer 35

I can send file I hope u understand

Answer 36

17) y=-2x^2 +4x-3
coefficient is nega tive than the graph is open down , y is minimum
Vertex: x=(-4)/(-2*2)
x=1
y =-1
table:
x f(x)
-2 -19
-1 -5
0 -3
1 -1
2 -3
3 -5

Answer 37

18) y= -2x^2-4x -4
coefficient is nega tive than the graph is open down , y is minimum
Vertex: x=-(-4)\(-2*2)
x =-1
y= -2
table:
x f(x)
-3 -10
-2 -4
-1 -2
0 -4
1 -10

Answer 38

19) y= -x^2+4x -5
coefficient is nega tive than the graph is open down , y is minimum
Vertex: x =2
y=-1
table:
x f(x)
0 -5
1 -2
2 -1
3 -2
4 -5

Answer 39

20) y= x^2-6x +10
coefficient is posi tive than the graph is open up, y is maximum
Vertex x=3
y=1
table:
x f(x)
-1 17
0 10
1 4
3 1
5 4
6 10
7 17

Answer 40

r u ok?

Answer 41

what u need?

Answer 42

?