Find the vertex using vertex formula
-b ÷ 2a -8 ÷ -2 x = 4 for y plug in
F(x) = -(4)² + 8(4) + 9
= -16 + 28 +9
= 12 + 9
= 21
(4,21)
vertex form
y = -(x - 4)² + 21
so that means it will flip down - means flip down
so vertex represents a maximum point
Answer:
24
Step-by-step explanation:
Assuming you want to find a mean, the answer is: 24 (sum of all values/number of values)
Range is largest-smallest
Median is middle value
Answer:
it depends its in between 4 and 8. what are you writing about?
