Inequalities in Two Variables Review

This is a graph of the inequality 2x+4y<15 Select all points that are solutions:

• (0,0)

• (8,0)

• (2,1)

• (4,4)

The 9th grade class is having a fundraiser selling t-shirts, x, and sweatshirts, y. They need to sell more than 120 total to make enough for the class trip at the end of the year.

Write an inequality representing these constraints.

The graph of the inequality x+y>6 is missing the shaded region. Where should this graph be shaded?

• Above

• Below

• No shading

When does the graph of an inequality have a dotted line?

• That can't happen.

• Lars meets both of his expectations

• Lars works for the expected number of days but doesn't earn the expected number of money

• Lars earns the expected amount of money but doesn't work for the expected number of days

• Lars doesn't meet either of his expectations

The ordered pair (a)   is in the solution set of 8x+16y>32.

• (-3, 5)

• (0, 2)

• (-1, 1)

• (4, 0)

• Astrid meets both of her expectations

• Astrid buys the expected number of fruits, but she does beyond her budget

• Astrid stays within her budget, but she doesn't buy the expected number of fruits

• Astrid doesn't meet either of her expectations

Lars meets both of his expectations

• Lars meets both of his expectations

• Lars works for the expected number of days but doesn't earn the expected number of money

• Lars earns the expected amount of money but doesn't work for the expected number of days

• Lars doesn't meet either of his expectations

When does the graph of an inequality have a solid line?

• That can't happen.

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