Mathematics 4 ESO – Unit 7 ELEMENTARY FUNCTIONS page 81 activity 18

Watch the video on “comparing exponential and logarithmic functions” and answer:

• a)  What two functions are graphed in the video?
• b)  What do we see in the video?
• c)  What happens when x “becomes more and more negative”?
• d)  Why is there a horizontal asymptote?
• e)  What is the difference between the tables of the two functions?
• f)  Are the two graphs a reflection of each other?
• g)  Are the two functions the inverse of each other?
• h)  What is the asymptote of the logarithmic function?