Thread: quadratic equations

hi, i need to make this into a quadrattic equation but there is a pert on the table which i can't remember what to do!

when you have x then -3,-2,-1,0,1,2,3
under that you puy Y and i can remember how to work that out! if you can help i will be very thankful!

my question is Y= x^2-4x+1 by the way

Replace the values of x in the equation given to you!

For example, under -3, you put:



Hence:

thanks for answering my question! under -2 it would be 11?

Does this equal 11?

no its 13, i think i got it now!! would -1=3?

Originally Posted by andyboy179

would -1=3?

I get 6

Think of it again:



Does this make 1?

remember that when you multiply two negative numbers, they become a positive number.

would 0 =1
1=0
2=1
3=1???

for 0: yes.

For 1:

For 2:

For 3:

Hm.. you need to work your basic calculations more...

actually would this be it:
-3=19
-2=11
-1=5
0=1
1=-1
2=-1
3=1

Are you sure you posted the right equation?

cr@p, no i didn't its -4X sorry!!!!!!!!

I still have no idea what the equation actually is...