alright look, I meant 'y=15x^(2)+4x+92', and the turning point can be either the highest or lowest point on a parabola. It's the point where the parabola turns, hence the name.
Regarding parabolas - it doesn't have to be the highest or lowest.
The parabola can be sideways.
And the parabola is always 'turning'.
There are other shapes too that don't have to have their vertex at top or bottom.
And they can have several. A hexagon has six.
And linear functions have no vertex at all.
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