Summary: Graphing a Line

Graphing a Line                                                                 January 3, 2012

OBJECTIVE: SWBAT GRAPH LINES ON A COORDINATE PLANE TO CREAT A SYSTEM

Today in class we learned/reviewed about how to graph a line and what you need to graph a line. To graph a line, you need a slope, which is change in y over change in x, b, your y intercept, and two points. You actually don’t really need the first two, y; you just need the two points to find you slope, which you could then use to find your y intercept, and then you could graph your line. Other ways to find your y intercept would be to use point slope or to graph the line or to navigate using the slope.

Summary: Systems of Equations- Elimination

Systems of Equations- Elimination                                   December 1, 2011

OBJECTIVE: SWBAT SOLVE SYSTEMS BY GRAPHING, ELIMINATION AND SUBSTITUTION

Today in class we learned about elimination. Elimination is fairly easy; all you need to do is choose a variable that you would want to cancel out. Usually you would want to use the easiest variable that you can eliminate. To eliminate that variable you would have to multiply the variable that you would want to eliminate with the other equation. Once you eliminated that equation, you solve it. An example is shown below.

EXAMPLE: