Answer:
D
Step-by-step explanation:
y = -0.2 x²
This has a negative sign, as opposed to y = x², so it will point in the opposite direction.
The leading coefficient (0.2) is less than 1. This means the parabola is shrunk vertically, or stretched horizontally. So the parabola is wider than y = x².
Well this is pretty simple
for the area we need to use the formula A=3.14*radius*radius
so we just plug it in and we get 3.14*8*8 which is 200.96 centimeters squared
for circumference we need to do C=3.14*diameter
to find the diamter we need to do 8 (radius) x 2 which is 16
plugging it in that would be 3.14 * 16 which is 50.24
So in this case the the area is 200.96 and the circumference is 50.24 :)
You can immediately read off the y-intercept; it is (0, -1).
To find the slope:
-3 - 0
m = ---------- = -1/3
9
