Homework Chapter 9
1. It is predicted that for 2004 to 2050, the fastest growing region will be Middle Africa, which
is expected to increase at a population rate of 190 percent. The next fastest growing regions
are expected to be Western Af
Complete each statement.
1. A function of the form f(x) = ab" is called an exponential function
when b is greater than 1.
2. A function of the form f(x) = ab" is called an exponential function
when b is a number between 0 and 1.
7-1 Exponential Functions and Logarithms
Ex 1: Tell whether the function
Shows growth or decay and
Graph the function.
f ( x) 10
12 10 8
Inverses of Trig Functions
inverse sine function
inverse cosine function
inverse tangent function tan 1
sin = a
cos = a
tan = a
sin 1 a =
cos 1 a =
tan 1 a =
REMINDER: IF YOU WANT ANSWERS IN DEGREES, PU
10-3 center (0,0)
1. Write the equation for the following ellipses. Give the x and y distances and circle whether the
ellipse is horizontal or vertical. ( Horizontal = x is bigger; Venica/ = y is bigger)
x =___ y = _____ horizontal/vertical