If X2 is directly proportional to X3 and Z=8 when X=4,find the values of z when x=9

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

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step-by-step explanation:

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