Function
a
n
Sketch
Where increasing? WHere decreasing?'
y-C-JO**
y - -O.I*4
y-lx>
y - -0.2x5
'
-
i. Use the results to answer the following questions, a. Which graphs cross the jc-axis? b. What do the equations for the graphs that cross the je-axis have in common?
c. What is the common feature of the graphs with -even values of n? d, If n is even, what is the difference between the graphs with positive values of a and those with negative values of d?
e. If « is odd, what is the difference between the graphs with positive values of a and those with negative values of cS
ACTIVITY 19
35