Solutions to Equations
Solutions to Inequalities
Solutions on a Graph
Random Unit 4
What Method is Best?
100
Is (2,-1) a solution to this system of equations?
Yes, it provides a true statement when plugged in
100
How many solutions are there to the following inequality?
Infinite
100
Is (-3, 1) a solution to this system of equations?
No
100
What is the LCD that you would use to multiply all terms of this equation?
1/3x-3/4y = -5/12
Multiply all terms by 12
100
What method is best to use? Elimination or substitution?
Elimination
200
Is (-2, -2) the solution to this system of inequalities?
No, it does not provide a true statement when plugged in
200
Does the point (3, 5) satisfy the inequality below?
Yes, it produces a true statement 5>1
200
What is the solution to this system of equations?
(1, -2)
200
What number would you multiply this equation by to clear the decimals?
-0.4x+0.2y = 0.06
Multiply all terms by 100
200
What is the best method to solve this system of equations? Elimination or Substitution?
Substitution, already solved for y
300
How many solutions does this system of equations have?
-9x + 3y =-15
y = -3x +5
Infinite, they are the same line
300
Is (3, -2) a solution to this system of inequalities?
No, it does not produce two true statements
300
What is the solution to this system of equations?
No solution
300
What two equations could represent this situation?
The total cost for a burger is $2.25. You pay using only quarters and dimes. You used 15 coins total.
0.25x+0.10y=2.25
x+y=15
300
What method is best to use for this system? Elimination or substitution?
Elimination, multiply the top equation by -2 or 7
400
Solve the following system of equations:
(6, -7)
400
Is (0,0) a solution to this system of inequalities?
Yes, it produces two true statements
400
Write the inequality that represents this graph
yltx-2
400
What two equations could represent the following situation:
At Vons you bought 4 oranges and 6 limes for $3.00.
The next day you bought 2 oranges and 8 limes for $2.20
What is the price of an orange?
4x+6y=3.00
2x+8y=2.20
400
Solve this system of equations. How many solutions are there? (One, Infinite or None?)
No solutions
500
What do the graphs of two lines with infinite solutions look like?
The same line
500
500
Is (1,1) a solution to the system of inequalities on the graph below?
No, it is on a dotted line
500
What is the 6th planet from the sun?
Saturn
500
What method is best to solve this system of equations?
Graphing