What is the slope of points (3, 5) and (2, 7)

There are two ways that you can do this.

First Method

Slope Formula:

7 is y2, 5 is y1, 2 is x2, and 3 is x1.

Therefore, the slope is -2. (aka "m = -2")

Second Method

Get a graph. Mark the two points on the graph and draw a line. After that, do the rise over run method. Go several units up and several units over. If the slope is going up to the left, then there is a negative slope. If the line is going up to the right, then there is a positive slope. (pictures of the graph down below)

I hope this helps! Let me know if I got something wrong.

(also check my profile and click on the question i asked. i can help you with more on there :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: