Erin entered the following expression into her graphing calculator.
14800*(1+.84/12)^
(12*2)
which of these future values could she have been calculating?

- (2, -7)

- lines r and s and lines t and u must be parallel

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