On the number line, 1 2 3 4 5 6 7 8 9, 6 is in between 5 and 7.
For a function to have a derivative in a point has to be continuous at the point, that is, it has to be defined at that point, other wise the derivative would be meaningless.
I remember CUP -- concave up positive. Here we have a leading coefficient that's negative, so the cup is upside down, the parabola opens down, an arch not a bowl.
Answer:
what are the two answers?
The his makes no sense to me sorry just trying to get points 1.5
