Question

kalinda monitors her heart rate while exercising the linear equation that models her heart rate while exercising is y = 8x plus 73 which statement explains the meaning of the y-intercept

Answer 1

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.