Screen-printing a batch of shirts requires 4 minutes per shirt in addition to 13 minutes of initial set-up time. If it takes 45 minutes to screen print a batch of shirts, how many shirts are in the batch? ​

entering that problem on the tube might get you an answer

hi there

the slope is 1/3.

this is because from the y-intercept, you go up one, and you go to the right three, to get to the next exact point on the graph. this is known at the “rise over run.”

p.s. (if you need it).your y-intercept is -2, because that is the point on the graph where the line crosses the y-axis.

hope that : )