Algebra 1 | Unit 5 | Lesson 1: Growing and Growing | Practice Problems

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The graph shows the yearly balance, in dollars, in an investment account. [Graph Image: URL]

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Investment account 1 starts with a balance of $200 and doubles every year. Investment account 2 starts with $1,000 and increases by $100 each year.

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A study of 100 recent high school graduates investigates a link between their childhood reading habits and achievement in high school. Participants are asked if they read books every night with another person when they were ages 2 to 5, as well as their grade average for all of their high school classes. The results are represented in the table.

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Lin says that a snack machine is like a function because it outputs an item for each code input. Explain why Lin is correct.

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At a gas station, a gallon of gasoline costs $3.50. The relationship between the dollar cost of gasoline and the gallons purchased can be described with a function. Identify the input variable and the output variable in this function.

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