Describe how the graph of y = |x| -7 is like the graph of y = |x| and how it is different. A.)The graph of y = |x| -7 is the same as y = |x|. B.) The graphs have the same y-intercept. The graph of y = |x| -7 is steeper than y =|x|. C.) The graphs are the same shape. The y-intercept of y = |x| is 0 and the y-intercept of y = |x| -7 is -7. D.) The graphs are the same shape. The y-intercept of y = |x| is 0 and the x-intercept of y = |x| -7 is -7.

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:

what’s the question?

8

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