Pleeease me im begging you with all my heart you get 20 points solve for m: (m-4)^3 = (1/8)^-1

You can simplify the right side. Then, you need to take cube roots.
  (m -4)³ = 1/(1/8) . . . rule of exponents
  (m -4)³ = 8 . . . . . . .simplify
  m -4 = ∛8 . . . . . . . take cube roots
  m -4 = 2 . . . . . . . . use your calculator or knowledge to find ∛8
  m = 6 . . . . . . . . . . add 4

The solution is m = 6.

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If you subtract the right side, you get a function of m that is zero when m has the right value. This graph shows that value is m = 6.

You're doing something i dont know how to do but search up on google slope calculator maybe that will get you there