Solving Systems of Equations!
Math Models- McKenna Robinson
What is "Solving Systems of Equations"?
If you are solving systems, then your wanting to find X and Y.
A system of equations have more than one equation, such as:
Their are many ways of Solving Systems by Graphing and Point of intersection
Solving by graphing mean each equations will find the point of intersection on a graph.
You can do this by going to (Y=) on your graphing calculator and putting in the problems in Y1 and Y2, hitting graph, then second, trace, (5) intersect, then enter 2x then you get your X and Y! :)
Another way of solving systems is Solving by Substitution!
Multiply 3 times 5x and -27
Then add the X's
Then add 81 to 4
Then divide 85 by 17
You also have Solving by Elimination!
Solving by Elimination is similar to solving by substitution but your finding X and Y.
Add them together..
4y=24 Divid 24 by four and you get...
Now we have to find x...write the problem down again, but in the Y place, put 6!
Then you solve for X and you get 1=x
Yay, you found out how to find X and Y! :D
Lets go over the things you learned!
Systems of Equations: Solving by Elimination is similar to solving by substitution but your finding X and Y
Point of Intersection: finding the point that one equation and another intersect one another on a graph and getting the coordinates x and y.
Solving by Graphing:Solving by graphing mean each equations will find the point of intersection on a graph
Solving by Substitution: Systems of equations can be solved by substitution, finding x and y
Solve by elimination: Solving by Elimination is similar to solving by substitution but your finding X and Y.