The points 5,7 and 2,4 lie on a line what is the equation of the line

y = x + 2

Step-by-step explanation:

Please enclose the coordinates inside parentheses:

(5, 7) and (2, 4).

As we move from (2, 4) to (5, 7), x increases by 3 (this is the "run") and y increases by 3 (this is the "rise").

Thus, the slope of the line connecting these two points is

m = rise / run = 3 / 3 = 1, and so, when we use the slope-intercept form of the equation of a straight line, we get:

7 = 1(5) + b, so that b comes out to 2.  Then the desired equation is

y = x + 2.

i really dont know

step-by-step explanation:

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: