Logarithmic Functions

                     Lesson 1


                                                            Problem:   The statement y = log25x is equals to?


                                                            Solution    x= by if y=logbx               

                                                            Step 1:                                                                                                                                                             


                                                            Solution    (where x > 0 and b is a positive constant not equal to 1)

                                                            Step 2:        Hence, x=25y                                                             


                                                            Solution    Answer: x=25y

Step 3:                                                            



                                                             Try two practice problems:  


                                                                                Solve the following:       



The statement y = log2x is equals to?


Find the domain of  y = log(x + 12)








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