Finish the steps below to write a quadratic
function for the parabola shown.
(6,5
1. Use the vertex form, f(x) = a(x - )2 + k,
and substitute in the values for h and k.
f(x) = a (x - 5)2 + 3
2. Use another point and substitute in values
for x and f(x). Solve for a.
5 = a(6-5)2 + 3
3. Write the function, using the values for h, k,
and a
NO
Vertex:
(5,3)
The function is f(x) =

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307