The formula H = 300 * W-0,3 gives the average amount of heartbeats per minute of a mammal. The W stands for the weight in kilograms which is less than 10 ton.
a. With what window range would you get the graph to show up nicely on a graphic calculator?
b. Calculate between which borders the weight of a mammal lays if the average heartbeat is between the 20 and 30 beats per minute.
