Question

Can someone give me an example of a quadratic equation that has an axis of symmetry of x=2 and whose graph opens down.

Answer 1

y = -x^2 + 4x

Answer 2

What about the "c" term

Answer 3

The c term means how far the graph is from the x - axis in terms of the y-axis direction.
For example,
y = -x^2 + 4x + 3
It means the graph is 3 units upwards of y = -x^2 + 4x and since you just wanted an example, I gave you the simplest, which is y = -x^2 + 4x + 0

Answer 4

what about y=(x -1)(x -3)

just distribute to get the equation..

Answer 5

Thanks !

Answer 6

Here's your medal.