Algebra 2 – Chapter 8 Pre-Test
Name: __________________
Date: __________________
Period: _________________
Graph the following: (Use a separate sheet of graphing paper.)
1) y  2 x
2) y  3 x  2
3) y  2 x  3
x
4) Write an exponential function in the form of y  ab whose graph passes through the
point (4,8) and (6,32).
If log b y  x
5) log 2 8  x
6) log 10 100  x
7) log 10 4 x  3
then
y  b x find x in questions 5 – 7
If log b M  N  log b M  log b N and log 2 2  a log 2 3  b log 2 5  c then evaluate
questions 8 – 10
8) log 2 6
9) log 2 15
10) log 2 30
11) Explain the transformations happening to its parent function ( y  2 x ) for the function
y  (2) x2  1
12) Since y  log 2 x is the inverse of y  2 graph the function y  log 2 x . (Use a
separate sheet of graphing paper.)
x
13) What do you think exponential and logarithmic functions are used to model in real
life?