unit+2

2.1

describe the relationship between different pairs of lines and their slopes as it relates to the number of intersections (solutions) that the system of equations will have. Be sure to discuss all 3 graphs and how they are similar or different. the two first slope are the same the last one is different.

‍__ 2.2: __
Describe the 3 different methods for solving (finding a solution) to a system of equations. Why/When would you choose one method over the another? What are you looking for in each system to determine the best method? Discuss any tricks or special techniques to remember when solving each of the methods.

graphing: one solution is when the 2 lines cross. no solution :parallel,same slope,different y-int. infinetely many:same slope,same y-intercept

elimination:both equation in standard form substitution: at least one variable