Answer :
In the given equation,
y = 8x + 73
we assume that y is the heart rate at any time x. The value of y, heart rate, at x = 0 is equal to 73. This means that it is the original value of x or the initial heart rate prior to exercising.
y = 8x + 73
we assume that y is the heart rate at any time x. The value of y, heart rate, at x = 0 is equal to 73. This means that it is the original value of x or the initial heart rate prior to exercising.