Answer:
You could use a graphing calculator to see the lowest point in the graph OR you could put that equation into it's completed squared form, which is (x-4)^2 -4. The opposite of -4 in the parentheses is positive 4, and the leftover -4 is the y value. So that also becomes (4,-4)
Answer:
This question is incomplete
Answer:
Step-by-step explanation:
A diameter of the circle.
I believe that it would be a-21/49
