What is the equation of the line, in slope-intercept form, which contains points (9,10) and (21, 14)

For which rational expression is -2 an excluded value of x?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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.