Question

hi, i am given the equation 7x^2+bx+c and vertex(10,-4). we must find what b and c are. can someone plz help me

Answer 1

10 = - b/ 2(7)

Answer 2

solve for b

Answer 3

thank you:)

Answer 4

you welcome, do u know how to solve for c?

Answer 5

so basically i got 140 =-b but isnt c the point -4?

Answer 6

b = -140

Answer 7

Recall,

y = ax^2 +bx + c

Answer 8

-4 = 7x^2 -140x + c

Answer 9

you have the x as well, insert it ans solve for c. Simple as cake! ;)

Answer 10

you see, it seems so easy but i guess i panic when i see it written lol. i havent done math in 4 years so im kinda freaking a little. i really appreciate your help

Answer 11

haha, right.
im doing this first time as well.

Answer 12

Please Hit Good Answer. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>^^^^^^^^

Answer 13

LOL ohhh of course!!!!

Answer 14

ty! :0

Answer 15

:)

Answer 16

which grade math is that?

Answer 17

536. i am completely lost in this class because my teacher does not speak english or french and he sdoes not even explain anything

Answer 18

lol. teachers suck at that. >_<

536? o.O

Answer 19

hmmm im not too sure what that translates to. its math 201 i believe. mostly al;l functions
its the math one takes before completing calculus

Answer 20

ohh.. cool.

Answer 21

lol not really. math actually scares me. what math are you doing

Answer 22

haha, i like math, it's kind of easy..

umm, i passed my HS. we dont really have math grades like math 117 or alg 2 or things like tht..

Answer 23

ohhh lucky you:) once you get it, theres a feeling of accomplishment, im more into psychology so for me this is scary stuff lmao

Answer 24

LOL. you must be in college or univ then?
i help many univ of pheonix people with math..

Answer 25

its my first year in university. so im trying to get back in the game since i had taken a small break from school. well its really great that ypu help:) if it wasnt for you id still be youtubing gibberish in an attempt to figure out the problem

Answer 26

Oh!!

hehe, thanks! ^_^

if u want any further help u can email me as well.

Answer 27

that would be great:)

Answer 28

einstein.saifoo@gmail.com

that's it. :)

Answer 29

lol cool email! mines sabrinapatti@hotmail.com just in case yu see a funny email

Answer 30

Alright, i will remember! :)

Answer 31

:)