Download e-book for iPad: Algebra I: Pt. I by Mary Jane Sterling

By Mary Jane Sterling

ISBN-10: 0764537636

ISBN-13: 9780764537639

The learn-by-doing option to grasp Algebra I

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Inside you’ll get the perform you want to research Algebra I, together with:


  • Basic concepts
  • Working with numbers

Equations and capabilities

  • Linear equations
  • Algebraic fractions
  • Polynomials and factoring
  • Inequalities and absolute worth inequalities
  • Radicals
  • Quadratic equations
  • Graphing
  • Systems of equations
  • Functions

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Extra resources for Algebra I: Pt. I

Sample text

Each of these processes has its place in algebraic manipulations. The use of one or the other depends on the particular application. 42 CliffsStudySolver Algebra I Distribution Property of Multiplication over Addition: a(b + c) = ab + ac Distribution Property of Multiplication over Subtraction: a(b - c) = ab - ac Identities If you keep your identity, then you don’t change. Two numbers are considered to be identities in algebra. The number “0” is the additive identity. If you add 0 to a number, that number doesn’t change—it keeps its identity.

There are many opportunities in algebra for combining and simplifying expressions with two or more of these exponential terms in them. The rules used here to combine numbers and variables work for any expression with exponents. They are found in formulas and applications in science, business, and technology as well as math. The term a 4 has an exponent of 4 and a base of a. The base is what gets multiplied repeatedly. The exponent tells how many times that repeatedly is. Laws for Using Exponents an$ am= an + m When multiplying two numbers that have the same base, add their exponents.

The graph of y =- 3 A. crosses the x-axis at 4. B. crosses the y-axis at 4. 1, 4 . C. crosses the x-axis at c - 3 m 125. What is the vertex of the parabola y = 3 (x - 1) 2 + 2? A. (1,2) B. (-1,2) C. (1,-2) 20 CliffsStudySolver Algebra I 126. The graph of the parabola y = 3 (x - 1) 2 + 2 A. opens upward. B. opens downward. C. crosses the x-axis in two places. 127. The graph of y = x(x - 1)(x + 3) crosses the x-axis at A. 1 and -3 B. 0 and -1 and 3 C. 0 and 1 and -3 128. The equation of the line that has a slope of 6 and goes through the point (3,-2) is A.

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Algebra I: Pt. I by Mary Jane Sterling

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