Systems Review Day 3

Solve the system of equations.
x + 2y = -3
x - y = -12

• (-9, 3)
• (-7 ,5)
• (3, 15)
• (9, 6)

Is (2,3) a solution for this system of equations?
y=3x
y=7x-8

• Yes
• No
• Maybe
• Idk

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

Which of the following is not a method to solve systems?

• Elimination
• Difference of Squares
• Substitution
• Graphing

What is the solution to the system of equations?

• (-1, -3)

• (3, 1)

• (1, 3)

• (-3, -1)

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions
• (0, -1.5)

Given the problem:

y = 2x + 5

3x + 2y = 10

Step 1:

3x + 2(2x + 5) = 10

What is the next step?

• Subtract 3x from both sides

• Distribute 2

• Add 2x and 5

• Subtract 10 from both sides

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

If a system of linear equations has one solution, what does this mean about the two lines? 

• Parallel lines
• the same line 
• Intersecting lines

If a system of linear equations has infinitely many solutions, what does this mean about the two lines?

• Intersecting lines

• Identical lines

• Parallel lines