Equations, Inequalities and Function Tables

This table represents an exponential function because...

• the y-values are being divided by 2 each time

• the y-values are subtracting 60 each time

If f(t) represents the amount of money in an account over t years, what does f(0) represent?

• the amount of money after t years

• the amount of money at the beginning (year 0)

Moving on to exponential functions: Which of the following equations is exponential?

Which inequalities best describe the domain and range of the part shown? 

The tables of ordered represent some points on the graphs of lines f and g? Which system of equations represents lines f and g?

What is the rate of change of y with respect to x for this function?

Which inequality is best represented by the graph?

Justin charges RM11 to mow a small lawn and RM26 to mow a large lawn. He would like to make at least RM130. Write an inequality that describes the situation. Let x = # of small lawns mowed and Let y = # of large lawns mowed

• 11x + 26y ≥ 130

• 11x + 26y > 130

• 11x + 26y ≤ 130

• 11x + 26y < 130

Which inequality matches the picture shown?

• y < -1/2 x + 5

• y > -1/2 x + 5

• y < -1/2 x + 5

• y > -1/2 x + 5