What is the solution?
(-1,1)
Solve the systems of equations using substitution:
y=3x-10
x=2
(2,-4)
Solve the systems of equations using Elimination:
-x - 5y = 4
x + 7y = -8
(6, -2)
How many solutions would a system of linear equations have if the equations are parallel and different y-intercepts?
Zero Solutions
Write the system of equations for the following scenario:
A class of 195 students went on a field trip. They took 7 vehicles, some cars and some buses. Find the number of cars and the number of buses they took if each car holds 5 students and each bus hold 45 students.
x + y = 7
5x + 45y = 195
How many solutions are there?
No Solutions
Solve the systems of equations using substitution:
y=2x-10
y=4x+8
(-9,-28)
Solve the systems of equations using Elimination:
2x - 3y = 9
-2x + y = -2
(-1, -4)
How many solutions would a system of linear equations have if the equations are parallel and have the same y-intercept?
Infinite Solutions
Write a system of equations for the following scenario:
A farmhouse shelters 10 animals. Some are pigs and some are ducks. Altogether there are 36 legs. How many of each animal are there?
x + y = 10
2x + 4y = 36
Solve Using Graphing:
y = 5/3x + 2
y = -3
Solve the systems of equations using substitution:
y = -2x - 9
3x -6y = 9
(-3, -3)
Solve the systems of equations using Elimination:
-6x - 10y = 4
6x + 10y = 0
No Solution
Is there 1 solution, No solution, or Infinite solutions for the following question?
3x - y = 19
-3x + y = 10
No Solutions
Write a system of equations for the following scenario:
Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 then how many of each kind did she buy?
28x + 15y = 131
x + y = 7
Solve this by graphing:
y = 2x - 4
y = -1/3 x + 3
(3,2)
Solve the systems of equations using substitution:
2x - y = 6
x = y + 5
Solve the systems of equations using Elimination:
-3x - 24y = -66
3x + 4y = -14
(-10, 4)
How many solutions does the system have?
3y + 4x = 6
12y + 16x = 24
These are the same exact line, therefore they have
Infinite Solutions
Write a system of equations for the following sceanrio:
At Elisa's Printing Company LLC there are two kinds of printing presses: Model A which can print 70 books per day and Model B which can print 55 books per day. The company owns 14 total printing presses and this allows them to print 905 books per day. How many of each type of press do they have?
70x + 55y = 905
x + y = 14
Solve the systems of linear equations by graphing:
Solve the systems of equations using substitution:
y = 8x -7
16x - 2y = 14
Infinitely Many Solutions
Solve the systems of equations using Elimination:
-15x + 6y = -36
-4x + 3y = -11
(2, -1)
How many solutions does the system have?
-6y + 2 = -4x
y - 2 = x
Different slopes
One solution
y=2/3x+1/3
y=x+2
Write a system of equations for the following scenario:
Molly's Custom Kitchen Supplies sells handmade forks and spoons. It costs the store $1.70 to buy the supplies to make a fork and $1.30 to buy the supplies to make a spoon. The store sells forks for $5.60 and spoons for $5.40. Last April Molly's Custom Kitchen Supplies spent $37.90 on materials for forks and spoons. They sold the finished products for a total of $147.20. How many forks and how many spoons did they make last April?
1.70x + 1.30y = 37.90
5.60x + 5.40y = 147.20