For the midpoint, you find the differences in x values and y values then divide them by 2. Like so:
Let's do x first:
(-16-0)/2 = (-16)/2 = -8
So our x coordinate is -8.
Now Y:
(-16)/2 = -8
So our Y coordinate is -8 as well.
So your answer is:
(-8,-8)
Say the base length is 8, and the height is 8. If you multiply it by 1/4, the new base length is 2. The formula for the area of a triangle is: A=1/2bh you take 1/2 of 2, which is 1, and you multiply by the height (8) to get 8 square units for the area. This is opposed to if you simply did the formula without multiplying by 1/4. If you avoided multiplying by 1/4, you would get A=(4)(8), which would get you 32 square inches for the area. So, in conclusion, multiplying the base by 1/4, gets you 1/4 the area.
You are dividing the number with the x so 4 when you divide 4 on both sides 4x cancels out because it’s 0 and 8 divides by 4 is 4 so y=4
The answer would be 0.5095. Hope this helps you!