Chapter 2.1 - 2.4 with 2.7 Linear Inequality

Ms. Savva is ordering pizzas and breadsticks for a school party and has a budget of no more than $81. An order of breadsticks costs $7 and a pizza costs $13. (x = breadsticks and y = pizzas)

• 20x ≥ 81

• 7x + 13y ≥ 81

• 7x + 13y ≤ 81

• y ≥ 20x + 81

The CRHS science department can spend no more than $2700 on textbooks this year. The department needs to buy both Biology text books, which cost $57 each, and Chemistry textbooks, which cost $72 each. (x = biology textbooks and y = chemistry textbooks)

• 57x + 72y ≥ 2700

• y ≥ 15x + 2700

• y ≤ 15x + 2700

• 57x + 72y ≤ 2700

Which of the following equations match the given graph?

• y ≤ -5/4 x + 3

• y ≥ -5/4 x + 3

• y > -4/5 x + 3

• y ≥ -4/5 x + 3

Which of the following equations match the given graph?

• x ≥ -1
• x ≤ -1
• x > -1
• x < -1

Tags

CCSS.HSA.REI.D.12

Which graph best represents the following inequality?

• 
• 
• 
• 

Tags

CCSS.HSA.REI.D.12

y < 3x - 3

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

Tags

CCSS.HSA.REI.D.12

y ≥ -9x + 5

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

Tags

CCSS.HSA.REI.D.12

The manager of an electronics store projects that the store should achieve atleast $21,000 in revenue from TVs and DVD players every day in order to remain profitable. Tvs sell for $225 and DVD players sell for $175. (x = tv's and y = dvd players)

• 225x +175y ≤ 21,000

• 225x +175y ≥ 21,000

• y ≤ 50x + 21,000

• y ≥ 50x + 21,000

Find the y intercept of 5x+3y=30

• (0, 6)

• (0, 3)

• (0, 5)

• (0, 10)

Find the slope of the line that passes through (10, -8) and (1, 12).

• 20/9

• -20/9

• 9/20

• -9/20