**Category:**HS Functions**Uploaded by HirooKato on:**2012-09-27 19:54:28

(70%) (2 Votes)

Ms. Melina Gutierrez from John Marshall HS in Los Angeles, created a
video on how to find the vertex through real world applications.
Questions this video answers How to find the vertex? How to find
t...

Ms. Melina Gutierrez from John Marshall HS in Los Angeles, created a

video on how to find the vertex through real world applications.

Questions this video answers How to find the vertex? How to find

the h (height) factor? What is a parabola? How long does it take to

reach the top using the vertex?

video on how to find the vertex through real world applications.

Questions this video answers How to find the vertex? How to find

the h (height) factor? What is a parabola? How long does it take to

reach the top using the vertex?

Comments (2 of 2)

I really like how Ms. Guitierrez thoroughly explained each step in this example. I also like how she introduced the general strategy before she did the particular, such as saying that the x-coordinate of the vertex is -b/2a before plugging in numbers to find the particular solution. This video is helpful and easy to follow.

Ms. Gutierrez does a great job explaining the concept of the problem. I like how she mentions the graph would look like a parabola and if we solve for the vertex, that point will answer both of the questions. I feel she could have explained the variable switch from x to t a little better (that the equation we are working with has t or time as the independent variable just like x usually is). It would also be helpful if she explained why the equation -b/2a helps us find the x-coordinate of the solution. A little technical issue, her voice overlaps when explaining the -b/2a equation. Overall, this is a really good video.