7x final review 2022

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (0, 1)

How many solutions does this system of equations have?

• One Solution
• No solution
• Infinitely Many Solutions
• Two Solutions

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅

Solve the system of equations by elimination.
-x + y = -13
-8x - 4y = -8 

• (5, 8)
• (5, -8)
• (-5, -18)
• (-5, 8)

a² + b² = c^{2
a = 9 b = 40}

• c = 41
• c = 65
• c = 25
• c = 5

a² + b² = c^{2
b = 35 c = 37}

• a = 12
• a = 11
• a = 18
• a = 14

Find the length of the missing side. 

• 25 cm
• 42 cm
• 52 cm
• 48 cm

Find the length of the missing side. 

• 20 in.
• 68 in.
• 16 in.
• 80 in.

• y  < -2/5x - 4 
• y  > -2/5x - 4 
• y  ≤ -2/5x - 4 
• y  ≥ -2/5x - 4