There are four coins with tails up. Turning any three coins over counts as one move.
How many moves does it take to get all coins to show heads if turning three coins at a time counts as one move?

step-by-step explanation:

irrational, cannot

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

if i put something wrong your not gonna like it so rather not say nothing.