9 Weeks Test Review

Determine whether  $\pi$  is rational or irrational.

• Rational

• Irrational

Which of the following numbers is rational?

• $\sqrt{7}$

• $\frac{2}{3}$

• 3.1456289...

• $\pi$

5/9=

• .50
• .55
• .555...
• .59

8/9 =

• .89

• 8.8

• .88....

• .80

What is the solution to the system of equation?

• (0, -1)
• no solution
• (0,1)
• infinite solutions

What is the solution to the system of equations?

• no solution
• infinite solutions
• (0, 3)
• (1, 0)

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

• intersecting lines
• parallel lines
• skew lines
• the same line (coinciding lines)

There are 15 animals in a barn. These animals are horses and chickens. There are 44 legs in all.  Which system of equations represents the situation?

• x + y = 15
  4x + 2y = 44
• 4x + 2y = 15
  x + y = 44
• x = 2y + 44
  4x = y + 15
• 2x - 4y = 44
  x - y = 15

Flagship Cinemas sells movie tickets that are $4 for matinees and $7 for regular. One night, the theater sells 578 tickets and collects $3365 in total ticket sales.
Which system best represents the situation?

• 4x + 7y = 578
  x + y = 3365
• 4x + 7y = 3365
  x + y = 578
• 4y + 7x = 578
  x + y = 3365
• 4y + 7x = 3365
  x + y = 578

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.
• always 7.