F(x) = 6x – 12 ; shifts 4 units down.

f(x) = 6x-16

Step-by-step explanation:

Since the function is shifting 4 units down, it will be moving down the y axis, meaning the y-intercept will decrease by 4.

y=mx+b is the formula for the straight line, where b is the y-intercept. The y-intercept in this function is -12, so we would just subtract -4 from -12 to get our answer.

-12-4=-16

Make sure to leave the coefficient of x

Therefore, f(x) = 6x-16

not a square

the diagonal divides the room into two right angle triangles

triangle ABC with AB=17 and AC =18.79

.theorem of Pythagoras

BC²=18.79²-17²

BC²=64.0641

BC=8 in

width is 8 in

length is 18.79 in

therefore it's not a square