Equations
Review of Lines
Solve By Graphing
Solve by Substitution
Solve by Elimination
100
When solving systems of equations algebraically which statement results in Infinitely many solutions?
a. x=0
b. 5=3
c. 2=2
d. -6 =6
c. 2=2
100
What expression should be used to solve by substitution?
3x - 4y = 2
x = 2x + 3
2x + 3
100
What is the solution?
(-1,1)
100
Solve the systems of equations using substitution:
-x + 4 = y
2y = -2x + 8
Infinitely many
100
What is the slope and y- intercept of the first equation?
14x + 2y = 26
-14x - 6y = -50
slope: -7.
y-intercept: 13
200
When solving systems of equations algebraically which statement results in Infinitely many solutions?
a. 0=0
b. x=0
c. -5=0
d. 5=0
a. 0=0
200
What is the slope?
2/5
200
How many solutions are there?
No Solutions
200
Solve the systems of equations using substitution:
-5x - 5y = 10
y = -3x
(1, -3)
200
What is the slope and y-intercept of each?
a. -3x - 24y = -66
b. 3x + 4y = -14
Slope.
a. -1/8
b. -3/4
300
When solving systems of equations algebraically which statement results in one solution? Choose all that applies.
a. x=12
b. x=0
c. -5=x
d. 2=0
e. 6=6
a. x=12
b. x=0
c. -5=x
300
What expression should be used to solve by substitution?
6x +2y = 8
y = -4x -6
-4x-6
300
How many solutions does each graph have and how do you know?
One Solution; The lines cross at only one point.
300
Solve the systems of equations using substitution:
8y = 4x
3x -6y = 9
no solution
300
What is the value of y in this system?
15x - 6y = 36
8x - 6y = 22
-1
Point is (2,-1)
400
When solving systems of equations algebraically which statement results in no solutions?
a. 0=0
b. 3=0
c. 7=x
d. 4=-4
e. x=0
b. 3=0
d. 4=-4
400
What is the solution to this system of equations?
y=-3x+6
y=x + 2
(1,3)
400
Free Square!
Everyone Gets Points
400
Solve the systems of equations using substitution:
-8x - 5y = -24
y = 10 + x
(-2, 8)
400
Solve the systems of equations using Elimination:
3x + 2y = 4
x + y = 8
(-4, 12)
500
How many solutions?
4x - 3y =12
-4x + 3y =-12
Infinitely many
500
How Many Solutions are There to This System?
y = 2x + 6
y = 2x - 1
No Solution.The lines are parallel.
500
How many solutions are there? y=2x-3 and -2x+y=-3
Infinitely Many Solutions
500
Solve the systems of equations using substitution:
-8x + y = -7
16x - 2y = 14
Infinitely Many Solutions
500
Two Gym Membership plans were compared.
A. At which month are both plans the same?
B. How much would the Beginners Plan have paid at 8 months? and How much would the Veterans Plan have paid?
A. 4 months
B. $140 Beginners Plan and Veteran about $160