Answer: Concave down
Explanation:
An example is shown below. We have the concave down parabola
marked in red. The trapezoidal sum is in blue. The three trapezoids combine to something just a bit smaller than the true area under the curve from x = -2 to x = 1. Therefore, this trapezoidal sum is an underestimate of the true area under the curve.
Every part of each trapezoid is completely below the red curve. In other words, no part of the blue pieces spill above the parabola.
First you do -5+12 which = 7
Then you add the X and square it
To make 7x^2
Yesterday's closing price was 7.25.
In order to find this, we take the current price and subtract how much it went up. This will give us the price from before it rose.
7.375 - .125 = 7.25
1 is A&B
2 is A
3 is C
Hope this helps.