Question

Look at this graph:

y
x
-10
-5
5
10
-10
-5
5
10
0


What are the coordinates of the vertex?


(
,
)

Answer 1

I can’t tell the shape/point from the text you pasted. Could you either

- upload the graph image, or
- describe the parabola (roughly where the highest/lowest point is relative to the grid lines or give three clear points on it)?

If you want to find the vertex yourself, here are quick methods:

- From the graph: the vertex is the highest or lowest point on the parabola — read its x and y coordinates from the grid.
- From y = ax^2 + bx + c: vertex x = -b/(2a); then y = f(-b/(2a)).
- From y = a(x − h)^2 + k: the vertex is (h, k) directly.

Send the picture or a clearer description and I’ll give the exact coordinates.