Inequalities
What type of line would this equation have?
y<3x+5
Dashed
Solve the systems of equations using substitution:
-3x + 4y = -2
y = -5
(-6, -5)
Solve the systems of equations using Elimination:
14x + 2y = 26
-14x - 6y = -50
(1, 6)
What strategy would you use?
14x + 2y = 26
-14x - 6y = -50
elimination
Is the given point a solution to the system of equations?
Point: (2,6)
x + y = 8
3x - y = 0
Yes
Where would we shade with this equation?
y>4x-5
Above the line
Solve the systems of equations using substitution:
-5x - 5y = 10
y = -4x -17
(-5, 3)
Solve the systems of equations using Elimination:
-3x - 5y = 2
3x + 5y = 7
No Solution
What strategy would you use?
-5x - 5y = 10
y = -4x -17
substitution
Is the given point a solution to the system of equations?
Point: (1/2, -2)
6x + 5y = -7
2x - 4y = -8
No
Is the intersection of a dashed and a solid line a solution to the inequality?
No, cannot be on dashed line
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 system of linear equations below?
3x - y = 19
-3x + y = 10
No Solutions
What did Ms. Lamp want to be growing up? (Hint the answer is not a teacher)
Astronaut
When you divide an inequality by a negative what should you do?
Flip the inequality sign
Solve the systems of equations using substitution:
-8x - 5y = -24
-x + y = 10
(-2, 8)
Solve the systems of equations using Elimination:
-3x - 24y = -66
3x + 4y = -14
(-10, 4)
What college did Ms. Lamp go to?
Baker University
Determine which method you would use to solve the following system of equations. Explain your reasoning.
0.3x - 0.2y = -2.1
0.6x + 1.3y = 0.9
Elimination - the equations are already in standard form.
Solve the systems of equations using substitution:
-8x + y = -7
16x - 2y = 14
Infinitely Many Solutions
Solve the systems of equations using Elimination:
-15x + 6y = -36
8x - 6y = 22
(2, -1)
What sport did Ms. Lamp play in high school?
Golf
Which method would you use to solve the system of equations? Explain your reasoning.
-6y + 2 = -4x
y - 2 = x
Substitution - the second equation is already solved for x.