What is the y-intercept of the line whose equation is y= 1/2x -3?

y-intercept = -3

Step-by-step explanation:

The number in the equation that has no x by it, is the y-intercept in most cases.

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

answer: 12   they all have at least 28 days

step-by-step explanation: haha