Determine the slope and y-intercept of the line.
y = 5x + 4

a.
slope = 4, y-intercept is (0, 5)
c.
slope = 5, y-intercept is (0, 4)
b.
slope = -5, y-intercept is (0, 4)
d.
slope = 4, y-intercept is (0, -5)

select the best answer from the choices provided

a
b
c
d

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:

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: