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Many graphs that appear concave from one side will appear convex from the other. A smooth graph is generally described as concave if it is increasing AND if the rate of increase is also increasing. In terms of calculus this requires the first and second derivative to be positive.

A concave polygon is one in which at least one of the vertices forms a reflex angle.

Q: How does concave graph look like?

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If you can differentiate the function, then you can tell that the graph is concave down if the second derivative is negative over the range examined. As an example: for f(x) = -x2, f'(x) = -2x and f"(x) = -2 < 0, so the function will be everywhere concave down.

That's a point where the curve of a graph changes from "concave upward" to "concave downward", or vice versa.

The answer depends on what is plotted on the graph and what is happening with the acceleration then.

it looks like any oyher graph u now EDIT: It looks like any other graph you know.

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If the sign of the term involving x2 is positive then it is concave upward, provided everybody agrees what concave upwards means. Just like y=x2 is concave upwards.

Upturned.

If it is symmetric then it looks like an arrowhead.

look like a ball

What does a Step Graph look like?

a line graph looks like a stocks chart

On a position vs. time plot with constant acceleration, the graph would be a curved line, not a straight line. The curve would be concave upward if the acceleration is positive and concave downward if the acceleration is negative. The slope of the line would represent the velocity at any given time.

If you can differentiate the function, then you can tell that the graph is concave down if the second derivative is negative over the range examined. As an example: for f(x) = -x2, f'(x) = -2x and f"(x) = -2 < 0, so the function will be everywhere concave down.

a data i like a graph it could be any kind of graph pie,bar,line graph

That's a point where the curve of a graph changes from "concave upward" to "concave downward", or vice versa.

The answer depends on what is plotted on the graph and what is happening with the acceleration then.

it looks like any oyher graph u now EDIT: It looks like any other graph you know.