Unit 2 Summative Assesment

Identify a solution of the system of inequalities

(hint: use Desmos)

• (-1,-2)

• (4,0)

• (0,2)

• (3,4)

Select the graph that solves the system of inequalities

by graphing.

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Colin needs to save at least $200 for homecoming. He works 2 jobs earning $9 per hour at QuikTrip and $25 per hour mowing lawns. He only has time to work 16 hours before homecoming.

• x + y ≥ 25

  x + y ≤ 9

• 100x + 25 y ≤ 200

  2x + 9y ≤ 16

• x + y ≥ 200

  9x + 25y ≤ 16

• 9x + 25y ≥ 200

  x + y ≤ 16

Kate is selling bracelets and earrings on Etsy to make money for summer 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.

Kate sold combination of (10, 28). What does this mean in context.

• Kate sold 10 bracelets and 28 earrings.

• Kate sold 10 earrings and 28 bracelets.

• Kate lost 10 bracelets and 28 earrings.

• Kate made 38 earrings.

Which color is the solution region to this system of inequaliteis?

• White

• Blue

• Purple

• Red

This system has an infinite number of solutions, TRUE or FALSE?

• TRUE
• FALSE

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

• Yes
• No

Which is the graph of the system of inequalities?

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Which system of inequality is shown?

• y > -4/5x - 1
  y ≤ 2/3x + 3
• y ≥ -4/5x - 1
  y ≤ 2/3x + 3
• y < -4/5x - 1
   y < 2/3x + 3
• y = -4/5x - 1
  y ≥ 2/3x + 3

Which region represents the solution to the following system of inequalities?
y ≤ x + 2
y ≤ -x+ + 4

• Region F
• Region G
• Region H
• Region J