Question

Help with 2nd page please?
MEDAL REWARDED!!

Answer 1

http://ms.nbschools.net/UserFiles/Servers/Server_775765/File/staff/Mr%20Andrew%20Butler/parabo-lems%20galore.pdf

Answer 2

@Mertsj ?

Answer 3

I am not sure what to do?

Answer 4

Essentially you have two choices for each table. The first choice is: square x and multiply it by a number to get y.

Answer 5

Okay

Answer 6

Let's try that for the first problem. (-2,8) is the first ordered pair. If we square x we get 4. If we multiply 4 by 2 we get 8.

Answer 7

Okay

Answer 8

Do we need to make a table?

Answer 9

Or something similar?

Answer 10

Let's see if that works for the second ordered pair (-1,5) If we square x we get 1. If we multiply that by 4 we get 4. OH NO!!! y is not 4. So that does not work for the first table.

Answer 11

So it is not linear?

Answer 12

So it is NOT y = ax^2. Therefore it must be y = x^2+c

Answer 13

Oh okay

Answer 14

These are parabolas, sweetheart. Not lines.

Answer 15

Oh sorry

Answer 16

That's why it says "parabo-lems"

Answer 17

Lol

Answer 18

Can you figure out the second one?

Answer 19

So what do we put for the first problem then?

Answer 20

Our teacher told us to write a verbal description and an equation.

Answer 21

Based on the parabolas shown.

Answer 22

If you have to write all that I would put :
\[(-2)^2+4=8\]
\[(-1)^2+4=5\]
\[(0)^2+4=4\]
\[(1)^2+4=5\]
\[(2)^2+4=8\]
So this parabola is of the form :
\[y=x^2+c \]; and c = 4

Answer 23

Thanks for the steps! :D

Answer 24

yw

Answer 25

So it is y=x^2+4
Or y=4x^2?
@Mertsj

Answer 26

Did we square x and multiply by 4 or square x and add 4?

Answer 27

Add 4?

Answer 28

Yes. If you bother to read my extensive post above, you will see that each one says +4

Answer 29

Yes, I did bother too, lol

Answer 30

Thanks!

Answer 31

yw

Answer 32

Help with the second one, second question please?

Answer 33

Square each x and see what you have to do to that answer to get y

Answer 34

Okay

Answer 35

Or each coordinate right?

Answer 36

Lol

Answer 37

each x coordinate...the first number in the ordered pair.

Answer 38

Okay

Answer 39

Can you help me step by step, please, because I have a test tomorrow and I need some practice.

Answer 40

Oh for the problem you just solve is wrong. I meant the second page not the first page.