From 12 ft to 23 ft? And is it a increase or decrease?

Increase

Step-by-step explanation:

If you are going from 12ft to 23ft it is an increase in length

Hope this helps

answer   download the app called socratic on your phoner:

step-by-step explanation:

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