- #1

I am not really familiar with this equation but my trigonometry teacher says it is something from Algebra 2. How can I prove why or how this equation works for finding the x-coordinate?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter daodude1987
- Start date

- #1

I am not really familiar with this equation but my trigonometry teacher says it is something from Algebra 2. How can I prove why or how this equation works for finding the x-coordinate?

- #2

iggybaseball

- 57

- 0

you are talking about using a specific equation:

ax^2 + bx + c ( quadratic)

however you use this equation:

f(x) = a(x-h)^2 + k (to put it into an equation that will make it easier to find the vertex of the equation)

h = -b/2a

k = c - ah^2 ( I am almost positive this is right)

the vertex will equal (h,k) so if the vertex liex on the x-axis u will have an x coordinate of the graph. hope that helps some

Share:

- Replies
- 1

- Views
- 570

- Last Post

- Replies
- 6

- Views
- 431

- Last Post

- Replies
- 10

- Views
- 398

- Last Post

- Replies
- 2

- Views
- 339

- Replies
- 4

- Views
- 108

- Replies
- 7

- Views
- 481

- Replies
- 39

- Views
- 1K

- Replies
- 3

- Views
- 386

- Replies
- 16

- Views
- 728

- Replies
- 33

- Views
- 1K