Exercises: Solve Systems of Equations by Graphing (4.1)
Exercises: Determine Whether an Ordered Pair is a Solution of a System of Equations
Instructions: For questions 1-8, determine if the following points are solutions to the given system of equations.
1.
a.
b.
Solution
a. yes
b. no
2.
a.
b.
3.
a.
b.
Solution
a. yes
b. no
4.
a.
b.
5.
a.
b.
Solution
a. yes
b. no
6.
a.
b.
7.
a.
b.
Solution
a. no
b. yes
8.
a.
b.
Exercises: Solve a System of Linear Equations by Graphing
Instructions: For questions 9-50, solve the following systems of equations by graphing.
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
Solution
no solution
Solution
no solution
Solution
no solution
Solution
infinitely many solutions
Solution
infinitely many solutions
Solution
Exercises: Determine the Number of Solutions of a Linear System
Instructions: For questions 51-62, determine the number of solutions and then classify the system of equations without graphing.
Solution
Solution
Solution
no solutions, inconsistent, independent
Solution
consistent,
Solution
infinitely many solutions
Solution
infinitely many solutions
Exercises: Solve Applications of Systems of Equations by Graphing
Instructions: For questions 63-66, solve.
Solution
Molly needs
Solution
Enrique needs
Exercises: Everyday Math
Solution
Leo should plant
Exercises: Writing Exercises
Solution
Given that it is only known that the slopes of both linear equations are the same, there are either no solutions (the graphs of the equations are parallel) or infinitely many.
When two or more linear equations are grouped together, they form a system of linear equations.