Solving Two Variable Linear Inequality Word Problems

What is the total amount Jill has to spend at the American Girl doll store?

• $1,000

• $11,000

• $10,000

• $1,100

How much does each doll cost?

• $25

• $50

• $100

• $150

What variable is used to represent the number of dolls?

• x

• o

• f

• d

What is the inequality equation representing Jill's spending?

• 100d + 25f < 1,000

• 100d + 25f = 1,000

• 100d + 25f ≥ 1,000

• 100d + 25f ≤ 1,000

What form is the inequality converted to for graphing?

• Standard form

• Intercept form

• Slope-intercept form

• Point-slope form

What is the slope of the line when the inequality is graphed?

• -4

• 4

• -1/4

• 1/4

Where does the line cross the y-axis?

• At 10

• At 0

• At 20

• At 40

Why is only the upper right quadrant of the graph considered?

• Because negative values are not possible for dolls and outfits

• Because it is easier to graph

• Because the teacher said so

• Because it is a standard practice

If 10 outfits are bought, what is the maximum number of dolls that can be purchased?

• 7

• 8

• 5

• 6

Why can't Jill buy 7.5 dolls?

• Because dolls cannot be bought in fractions

• Because it exceeds the budget

• Because it is not allowed in the store

• Because it is not a whole number