Posted by **Lina** on Thursday, January 13, 2011 at 6:11pm.

Hi I need help with my math problem. It is:

Name the function rule from the table given.

Table-

X= Y=

-4 4

-2 2

0 0

answers:

y = -x

y = -4

y = 2x

y = x

I do not get how to solve this problem!

- 8th grade Math -
**Lina**, Thursday, January 13, 2011 at 6:12pm
Also please do NOT tell me the answer but show me how to solve it. Thanks everybody!

- 8th grade Math -
**helper**, Thursday, January 13, 2011 at 6:23pm
look at the first entry in the table

if x = - 4, y = 4

now look at each rule

1st rule says,

that y = -x ( y equals the neg of x)

2nd rule says,

y = -4 (the value for y is -4)

3rd rule says

y = 2x (y is two times the value of x)

4th rule

y = x (y and x are the same)

since if x = - 4, y = 4 (1st entry)

the rule would be

y = -x

do you understand?

look at the other entries in the table and see how they all follow this rule

- 8th grade Math -
**Lina**, Friday, January 14, 2011 at 6:17pm
:)

- 8th grade Math -
**Katie**, Monday, January 17, 2011 at 11:18pm
I need help finding heighth of a pyramid.

- 8th grade Math -
**Jordan**, Tuesday, January 25, 2011 at 8:37pm
You divide by -1

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