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Can someone help please?

Can someone help please?-example-1
User ZaBlanc
by
8.1k points

1 Answer

1 vote

Answer:

This is a tricky problem, don't feel bad for not knowing this :/ I think this is too much in one question even :P I'll give you the answers and how to get them but really it's going to be a lot to understand in one try. Pay attention :P

Explanation:

first graph the given table .. I use Desmos b/c it's handy

we want y = A
x^(2) + bx + c

given 1st 2nd

5 -5 2

0 -3 2

-3 -1 2

-4 1 2

-3 3 2

0 5 2

5 7

12

A=2nd / 2 = 2/2 = 1

B=?

C= 5

x=1

y=12

y = a
x^(2) + bx +c

12=
1^(2) + b(1) +5

12=1+ b +5

6=b :)

y =
x^(2) + 6x +5 ( the answer to a) in the question )

factor it

(x+5)(x+1) ( answer to b) in the question

vertex form

y = a(x-h)2 + k

where h = −b/2a

and k = f( h )

h=6/2(1) = 3

k =
3^(2) + 6(3) +5

k=32

y =x-3 + 32 ( answer to c) in question )

let me know if this worked for you :) ( I did this fast late at night :/ )

User Sagar Patel
by
8.1k points

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