Find the area of the triangle defined by the coordinates (-3, -4), (-7, 0), and (-3, 4).

The area of a Triangle is 1/2BH (B=Base length, H=Height)
When looking at the points, we can figure out the following:

The distance between the two points at the base is 8 (to get from -4 to 4 you must add 8) and the height is 4 (to get from -4 to 0 as well as 0 to 4, the distance is 4).

Now we plug in our values:
Area= 1/2(8)(4)
=1/2(32)
=16 Units squared

Therefore, your answer is 16 units squared.

I hope this Helps!
-Sinnamin

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2