Solving Absolute Value Equations — Unit test

Question 1

Solve the equation.y + 3 = –y + 9

Revolt · Accepted Answer

y = 3

Question 2

Johan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. Which explains whether his solutions are correct?

Revolt · Accepted Answer

He is not correct because he made a sign error.

Question 3

Kate begins solving the equation (6x – 3) = (6x – 4). Her work is correct and is shown below.(6x – 3) = (6x – 4)4x – 2 = 3x – 2

Revolt · Accepted Answer

The equation has one solution: x = 0.

Question 4

Bodhi has a collection of 175 dimes and nickels. The collection is worth $13.30. Which equation can be used to find n, the number of nickels in the collection?

Revolt · Accepted Answer

0.1(175 – n) + 0.05n = 13.30

Question 5

Four ounces of oregano and 2 ounces of garlic powder are mixed to create a poultry seasoning. Oregano costs $4 per ounce and garlic powder costs $3 per ounce. The table shows the costs of the ingredients.

Revolt · Accepted Answer

6

Solving Absolute Value Equations — Unit test Answers

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