PLS HELP OMG The area of a square is given by this polynomial

4x2 - 36x + 81

Which expression reprents the length of one side of the square?

a
2x -9
b
2x + 9
c
4x - 18
d
4x + 18

a)  2x - 9

Step-by-step explanation:

The length is the square root of the whole equation.

Sq rt over all 4x^2-36x+81

= 2x - 9

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.