Question 434359: What is the quadratic relation ship between x and y
1x 3y
2 12y
4x 48y
Answer by robertb(5830)   (Show Source):
You can put this solution on YOUR website! 
To show this, Let 
==> 
 , and
Subtracting the 1st from the 2nd, we get 
<==> 9 = 3a - 2ah
Subtracting the 2nd from the 3rd, we get 
<==> 36 = 12a - 4ah, or 9 = 3a - ah.
Now we have the equations 9 = 3a - 2ah, and 9 = 3a - ah.
subtracting the first from the second, we get ah = 0.
Since  , we have h = 0.
Substituting h = 0 into and , we get
3 = a + k and 12 = 4a + k.
From this we get a = 3.
Finally putting h = 0 and a = 3 into , we get k = 0.
|
|
|
