LCI-Unit 4 Review

Write the linear inequality in standard form for this situation: Ms. Savva is ordering pizzas (y) and breadsticks (x) for a school party and has a budget of no more than $81. An order of breadsticks costs $7 and a pizza costs $13.

• 7x + 13y < 81

• 7x + 13y ≥ 81

• 7x + 13y ≤ 81

• 7x + 13y > 81

How can you tell if an inequality will have a solid line?

• It only has an equal sign.

• The inequality symbol is greater than.

• The inequality symbol has "or equal to."

• You just guess.

Consider the function y<2x+3. Which is true?

• The line would be solid with shading above.
• The line would be dashed with shading above.
• The line would be solid with shading below.
• None of these.

Tags

CCSS.HSA.REI.D.12

Write the linear inequality in standard form for this situation: A landscaping business is purchasing plants from a nursery to finish a project. It will cost $14 each to buy each tree (x) and $5 each to buy each bush (y). The landscaper wishes to keep the spending under $1000.

• 14x + 5y ≥ 1000

• 14x + 5y < 1000

• 14x + 5y ≤ 1000

• 14x + 5y > 1000

Select the graph that represents the inequality.

• A

• B

• C

• _D

Which of the following equations match the given graph?

• y ≤ -5/4 x + 3

• y ≥ -5/4 x + 3

• y < -5/4 x + 3

• y > 5/4 x + 3

Which of the following equations match the given graph?

• x ≥ -1

• x ≤ -1

• x > -1

• x < -1

Which point below is NOT a part of the solution set?

• (0, 0)

• (0, 1)

• (-100, -3)

• (5, 10)

Are the points on the boundary line part of the solution set or not in this graph?

• Yes, they are part of the solution set

• No, they are NOT part of the solution set

y < 3x - 3

• dashed line/shaded below
• dashed line/shaded above
• solid line/shaded below
• solid line/shaded above

Tags

CCSS.HSA.CED.A.3

CCSS.HSA.REI.D.12