Which function rule produces the following graph?

a.) y -1 = -2/3 (x+3)
b.) y +1 = -2/3 (x+3)
c.) y -1 = -2/3 (x-3)
d.) y +1 = -2/3 (x-3)

explain: )

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

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Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.