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Algebra (for members)
Chapter 0 : Pre-Algebra
0.1 Integers
0.2 Fractions
0.3 Order of Operations
0.4 Properties of Algebra
Chapter 1: Solving Linear Equations
1 One Step Equations
1.2 Two-Step Equations
1.3 General Equations
1.4 Fractions
1.5 Formulas
1.6 Absolute Value
1.7 Variation
1.8 Number and Geometry
1.9 Age Problems
1.10 Distance, Rate and Time
Chapter 2 : Graphing
2.1 Points and Lines
2.2 Slope
2.3 Slope-Intercept Form
2.4 Point-Slope Form
2.5 Parallel and Perpendicular Lines
Chapter 3 : Inequalities
3.1 Solve and Graph Inequalities
3.2 Compound Inequalities
3.3 Absolute Value Inequalities
Chapter 4 : Systems of Equations
4.1 Graphing
4.2 Substitution
4.3 Addition/Elimination
4.4 Three Variables
4.5 Value Problems
4.6 Mixture Problems
Chapter 5 : Polynomials
5.1 Exponent Properties
5.2 Negative Exponents
5.3 Scientific Notation
5.4 Introduction to Polynomials
5.5 Multiplying Polynomials
5.6 Multiply Special Products
5.7 Divide Polynomials
Chapter 6 : Factoring
6.1 Greatest Common Factor
6.2 Grouping
6.3 Trinomials where a = 1
6.4 Trinomials where a ≠ 1
6.5 Factoring Special Products
6.6 Factoring Strategy
6.7 Solve by Factoring
Chapter 7 : Rational Expressions
7.1 Reduce Rational Expressions
7.2 Multiply & Divide
7.3 Least Common Denominators
7.4 Add & Subtract
7.5 Complex Fractions
7.6 Proportions
7.7 Solving Rational Equations
7.8 Dimensional Analysis
Chapter 8 : Radicals
8.1 Square Roots
8.2 Higher Roots
8.3 Adding Radicals
8.4 Multiply and Divide Radicals
8.5 Rationalize Denominators
8.6 Rational Exponents
8.7 Radicals of Mixed Index
8.8 Complex Numbers
Chapter 9: Quadratics
9.1 Solving with Radicals
9.2 Solving with Exponents
9.3 Complete the Square
9.4 Quadratic Formula
9.5 Build Quadratics From Roots
9.6 Quadratic in Form
9.7 Rectangles
9.8 Teamwork
9.9 Simultaneous Products
9.10 Revenue and Distance
9.11 Graphs of Quadratics
Chapter 10 : Functions
10.1 Function Notation
10.2 Operations on Functions
10.3 Inverse Functions
10.4 Exponential Functions
10.5 Logarithmic Functions
10.6 Compound Interest
10.7 Trigonometric Functions
1.7 Variation
The current in an electrical conductor varies inversely as the resistance of the
conductor. If the current is 12 ampere when the resistance is 240 ohms, what
is the current when the resistance is 540 ohms?
4.3k
3k
6 k
5.3k
The number of aluminum cans used each year varies directly as the number of
people using the cans. If 250 people use 60,000 cans in one year, how many
cans are used each year in Dallas, which has a population of 1,008,000?
255,920,000 cans
241,920,000 cans
4272 cans
4200 cans
The electrical current, in amperes, in a circuit varies directly as the voltage.
When 15 volts are applied, the current is 5 amperes. What is the current when
18 volts are applied?
3000g
5k
6k
7k
w is inversely proportional to the cube of x and w is 54 when x = 3
wx
3
=1458
wx
3
=2
x
3
=2
w/x
3
=1458
w varies inversely as x
K=x/w
K= wx
K=w-z
K=w/x
c varies directly as a
k=c+a
k=ca
k=c/a
k=a/c
The intensity of illumination falling on a surface from a given source of light
is inversely proportional to the square of the distance from the source of light.
The unit for measuring the intensity of illumination is usually the foot candle. If
a given source of light gives an illumination of 1 foot-candle at a distance of
10 feet, what would the illumination be from the same source at a distance
of 20 feet?
I = 0.50
I = 0.25
I = 1
I = 0
x is jointly proportional to y and z
k
=
yz
3
k=
x
yz
k=xyz
k=x+y+z
e varies jointly as f and g and e = 24 when f = 3 and g = 2
4=(fg/e)
4=e/(fg)
4=f+g+e
4=fg+e
m is inversely proportional to n and m = 1.8 when n = 2.1
n/m = 1.17
m/n =0.85
mn = 3.78
m+n = 3.9
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