Hey guys,
Can you help me answer this question?
*Find the equation, in vertex form, of the quadratic realtion with zeors at -2 and 8 and y-intercept of 8.
Thanks
You want the form:
You have zeros at (-2, 0) and (8, 0) and a y-intecept of (0, 8).
Plugging these points into the equation individually:
Or:
Probably the simplest thing to do here would be to take the last equation:
and sub it into the top two equations.
==>
==>
These turn into:
I'm going to multiply the top equation by 2 and add the bottom equation to it:
--------------------------------
Thus
So
Becomes
Finally:
So
-Dan