Select the equation that contains the point (4, 7) and in which the slope equals 1. A. y - 7 = x - 4
B. y + 7 = 4x
C. y - 7 = 4x
D y - 7 = x + 4

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

i can answer this question sweetie!

step-by-step explanation:

step-by-step explanation: