12/11 in Class Practice

Select the correct graph for each inequality.

• A
• B
• C
• _D

Which is true about this graph??

• it is shaded above and has a dashed line

• it is shaded below and has a solid line

• it is shaded above and has a solid line

• it is shaded below and has a dashed line

Select the graph for y ≥ -3.

• A
• B
• C
• D

Identify the inequality.

• y > 2

• y ≤ 1

• x ≥ 2

• y ≥ 1

Which of the following equations match the given graph?

• y ≥ -3x + 4
• y ≤ 3/5x - 5
• y > -x - 5
• y < -4

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

The equations of two lines are:
 2x-y=4 and y=-2x+8.
What is the value of x in the solution for this system?

• x=8
• x=3
• x=11
• x=5

Christian had brochures printed for a new business venture. Christian originally ordered 4 boxes of black-and-white brochures and 3 boxes of color brochures, which cost a total of $134. After those ran out, Christian spent $120 on 3 boxes of black-and-white brochures and 3 boxes of color brochures. Which system represents this situation?

• x+y=134
  x+y=120
• 3x+3y=134
  4x+3y=120
• 4x+3y=134
  3x+3y=120
• 7xy=134
  6xy=120

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

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

Solve for x and y
5x + 3y = 7
y = 4

• (4,1)
• (4,-1)
• (1,4)
• (-1,4)