Please need help on these two

1. The multiplicative rate of change is 4.

2. (2,20)

Step-by-step explanation:

The formula for this exponential function would be f(x) = A • B^x. A is the initial amount, and B is the rate of growth, or the multiplicative rate of change. For number two, if you plug in the numbers they give you, you can see that when x is 2, f(x) is 50. Therefore, it cannot be (2, 20).

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb