The number of items, n, made in 1 hour by a machine is given by n=30/t, t is the time in minutes the machine takes to make one item. The value of r changes for different types of item. On the grid, plot the points that would be used to draw the graph of n = 30/t for values of t from 1 to 4

The number of items n made in 1 hour by a machine is given by n30t t is the time in minutes the machine takes to make one item The value of r changes for differ class=