Lecture notes for Section 1.4

1. Section 1.4 ­ Rewriting Equations and Formulas A.notebook July 29, 2009
Section 1.4 ­ Rewriting Equations and Formulas
Rewriting an
equation
Solve 7x ­ 3y = 8 for y
with more
than one
variable
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2. Section 1.4 ­ Rewriting Equations and Formulas A.notebook July 29, 2009
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3. Section 1.4 ­ Rewriting Equations and Formulas A.notebook July 29, 2009
Calculating Find y when x = ­1 for the
the Value of following equation:
a Variable
x + xy = 1
Find y when x = 3
Using an You need to make $25,000 from a
Equation concert. You charge $25.25 a
with more
than one ticket for adults and sell 800. How
variable much do you need to charge kids if
you sell 200 kid tickets? 300 kid
tickets?
Let M = money made
PA = price of adult ticket
TA = number of adult tickets
PK = price of kid ticket
TK = number of kid tickets
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4. Section 1.4 ­ Rewriting Equations and Formulas A.notebook July 29, 2009
Homework Section 1.4 Worksheet #2 ­ 30 even
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