Which equation represents the graphed function?

y = (1/4)x - 2

Step-by-step explanation:

This answer is in slope-intercept form (y=mx + b), because it is easiest in this case to find the slope and intercept. The y-intercept is given in the coordinate (0, -2). Now, all we need is the slope. Plugging in the two points that are given by the picture, we can do rise/run to find the slope of the line.

         m = -1 - (-2) / 4 - (0) = 1/4

Now we just plug in the slope (m) and y-intercept (b) values into the y=mx+b form to get our equation of the graphed function.

y = (1/4)x - 2

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1