Algebra 5.9 - Substitution

Let us now consider pairs of equations of the forms: y = x, and x = y + c, where c is a constant you can choose with the counter. Here, you can see right away that if c equals 0, the two graphs coincide, making the two relations identical, as with x = y. If c has any value other than 0, the two lines are parallel, and have no points in common. In this situation, there are no values for x or y that can satisfy both equations. The equations thereby have no solution.

Substitution

Elementary Algebra

<< - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - >>

Visual Math Learning is a free educational web site featuring an interactive on-line tutorial for teaching elementary mathematics and basic arithmetic for grades K-12 at the pre-algebra level. It is an instructional aid for parents, teachers, and educators of primary, elementary, and middle school students, as well as a resource for lesson plans, homework help, and home schooling math lessons. The tutorial includes games, puzzles, interactive diagrams, and computer animated virtual manipulatives that emphasize active learning concepts by visualization.