Unit 6 Weeks 26-27 Review

• 15x + 18y <= 50

• 15x + 18y >= 50

• 15x + 18y >= 650

• 15x + 18y <= 650

When looking to determine a graph of an inequality in standard form, we would want to get it to slope-intercept form, and then look at the what most closely?

• Slope

• Y-Intercept

• X-Intercept

• We don't need it in slope-intercept form

Once a graph of an inequality is in slope-intercept form and we determine which line is the correct graph, what should we look at with shading if we want below the line, and a dashed line?

• <=

• >=

• >

• <

If we want to record songs that are 5 minutes (x) or 6 minutes (y) in length, where we want a CD that has music for more than 80 minutes, but no more than 18 songs, which set of inequalities would work?

• 5x + 6y > 80

  x + y <= 18

• 5x + 6y >= 80

  x + y <= 18

• x + y > 18

  5x + 6y > 80

• x + y <= 18

  5x + 6y < 80

If I were to graph the inequalities y < 3 + x and y <= -3x - 2 on the coordinate plane, what should my shading be?

• Above 1st one and below 2nd one

• Below 1st one and above 2nd one

• Above both

• Below both

Allison repairs can openers and microwaves. She used these inequalities:

x > y

x + y >= 12

What can this situation represent if she repaired more can openers than microwaves and she uses an ordered pair (8, 5)?

• She repaired 8 total appliances, 5 of which were can openers

• She repaired 8 total appliances, 5 if which were microwaves

• She repaired 8 can openers and 5 microwaves

• She repaired 5 can openers and 8 microwaves

Jeff tips for dinner each time between 20% and 25%. His inequalities are represented by y > 0.2x and y < 0.25x. y is tip and x is the bill before tip. Which is a true statement?

• On a $10 bill, he pays between $2 and $2.50

• On a $100 bill, he pays between $2 and $2.50

• When he pays $10 in tip, his bill was between $20 and $25

• When he pays $20 in tip, his bill was between $4 and $5

If I have a graph shaded in the 4th quadrant, which ordered pair would be included?

• (-2, 3)

• (-4, -5)

• (9, 3)

• (8, -6)