Scientists studying a certain species of frog found
that the population is decreasing by 35% each
year. The initial population of frogs was 750. Write
an equation that models the population y of frogs
remaining after x years.
a is the initial population, so a = 750.
b is the decay factor, so b= 35% = 0.35
Substitute for a and bin y = ab.
The equation that models the population y of
frogs remaining after x years is y = 750(0.35).

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

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Describe how to determine the average rate of change between x = 4 and x = 6 for the function f(x) = 2x^3 + 4. include the average rate of change in your answer.