4. which of the following functions has a rate of change that stays the same?
y=-4x+10
y=1/2x^2
y = 3^x
y=x^2+2

Step-by-step explanation:

A linear function has a constant rate of change.

So all you need to do is to identify which of the given options is a linear function.

is a linear function and the rate of change is -4.

We can see this is a constant.

has a variable rate of change which is

also has a rate of change which is  

also has a variable rate of change which is 2x

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !