Unit 6.C CW (Part 2): Systems of Inequalities

Is (-2,4) a solution to the system?

• Solution
• Not a solution

Is (0,0) a solution to the system?

• Solution
• Not a solution

Tags

CCSS.HSA.REI.D.12

Which point is a solution?

• (0, 6)
• (-3, 4)
• (1, 0)
• (-4, 3)

Tags

CCSS.HSA.REI.D.12

Which system of inequalities is shown?

• y ≥ -x - 1
  y < x + 4
• y < -x - 1
   y ≥ x + 4
• y > -x - 1
  y ≥ x + 4
• y > -x - 1
  y ≥ x + 3

Tags

CCSS.HSA.REI.D.12

Luka and Dana are making cookies. They only have up to 6 hours to bake! They can bake 32 chocolate chip cookies in an hour (x), and 20 snickerdoodle cookies in an hour (y). They need to make at least 150 cookies. Which inequalities represent the situation?

• x + y ≥ 6

  32x + 20y ≤ 150

• x + y ≥ 632

  x + 20y ≥ 150

• x + y ≤ 6

  32x + 20y ≤ 150

• x + y ≤ 6

  32x + 20y ≥ 150

Kate is selling bracelets and earrings to make money for vacation. The bracelets (x) cost $2 and earrings (y) cost $3. She needs to make at least $100, but can only make up to 40 pieces of jewelry. Which inequalities represent this situation?

• 2x + 3y > 100

  x + y ≤ 40

• 100x + 2y > 3

  x + y ≤ 40

• 100x + 40y > 100

  3x + 2y ≤ 40

• 3x + 2y > 100

  x + y ≤ 40

When you graph the system:
y > -2x + 1
y≤ x + 3
Which of the following is a solution?

• (2, 0)
• (-1, 2)
• (0, 4)
• (0, -4)

Tags

CCSS.HSA.REI.D.12

Is (5, 2) a solution to the system?
2x+4y<20
3x-2y>11

• Yes
• No
• Sometimes

How can I tell if the graph of an inequality will have a solid line?

• It has just an equal sign.
• The symbol is greater than.
• The symbol has "or equal to."
• You just guess.

Tags

CCSS.HSA.REI.D.12

When solving to slope-intercept form, do I need to flip my inequality sign? 2x - 3y  ≥ 12

• Yes

• No