which is the direct linear variational equation for the relationship? y varies directly with x and y = 12 when x = 4.
a. y = 2x + 4
b. y = 3x
c. y = x – 8
d. y = x + 8

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.