# Math Chapter 1 Review

## Relevant Practice Final Questions

The questions on the Math 120 Review that appear to deal
with

Chapter 1 are 7, 29-30, and 33-56

## 1.1

Important Formulas/Concepts:

1 Graphing equations.

2 What it means for a point to be a solution of an equation .

3 Finding x- and y- intercepts .

## 1.2

Important Formulas/Concepts:

1 Definition of a linear equation .

2 Solving linear equations.

3 Solving rational expressions (noting domain).

4 An equation is an identity if it is true for all real numbers and

an inconsistent equation if it is not true for any real number.

## 1.3

Important Formulas/Concepts:

1 Formulas.

2 Using models/solving word problems.

3 Solving formulas for variables .

## 1.4

Important Formulas/Concepts:

1

2 Rules for simplifying square roots with negative numbers.

3 Multiplying/ dividing complex numbers.

4 Standard form of complex numbers a + bi.

## 1.5

Important Formulae/Concepts:

1 Definition of quadratic equations .

2 Solving quadratic equations by factoring and using the

zero -product principle.

3 The square root method .

4 Completing the square.

5 The quadratic formula.

6 The discriminant.

## 1.6

Important Formulas/Concepts:

1 Strategies for solving other equations including: using

factoring by grouping, isolating a

radical->squaring/ cubing ->etc., radical equations with

rational exponents, equations in quadratic forms, absolute

value equations .

## 1.7

Important Formulas/Concepts:

1 Linear inequalities (definition)

2 Plotting solutions to linear inequalities on a number line.

3 Solving linear inequalities.

4 Solving compound linear inequalities.

5 Solving absolute value inequalities.

## 1.8

Important Formulas/Concepts:

1 Quadratic inequalities, definition.

2 Solving quadratic inequalities (by factoring, drawing a number

line, and checking the intervals).

3 Solving rational inequalities (by finding the values that make

either the numerator or the denominator zero , drawing a

number line, and checking the intervals).

Prev | Next |