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STAAR EOC Algebra I Exponential Functions — practice questions

Explore 23 free Exponential Functions questions in STAAR EOC Algebra I Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Exponential Functions questions and exercises with answers

Showing questions 1–23 of 23.

In an exponential function, which part of the expression holds the variable?Read the answer and worked solution →In the functions studied before exponentials, the variable was the:Read the answer and worked solution →A line that a graph approaches but never touches is called an:Read the answer and worked solution →The domain of an exponential function is the set of all:Read the answer and worked solution →Every exponential function graph passes through which point?Read the answer and worked solution →Equations that include an exponential expression are called:Read the answer and worked solution →The x-axis acts as which kind of asymptote for an exponential graph?Read the answer and worked solution →The irrational number e is known as the:Read the answer and worked solution →The exponential function whose base is e is called the:Read the answer and worked solution →If both sides of an exponential equation share the same base, then the exponents are:Read the answer and worked solution →Before using the one-to-one property, both sides must be written with the same:Read the answer and worked solution →Exponential growth is described as having a rate of growth that is:Read the answer and worked solution →Exponential decay is described as having a rate of growth that is:Read the answer and worked solution →Passing the horizontal line test means an exponential function must have an:Read the answer and worked solution →Which real-world models are named as being exponential in shape?Read the answer and worked solution →When the base makes an exponential graph fall from left to right, the graph is:Read the answer and worked solution →Shifting an exponential graph down two units also shifts which feature?Read the answer and worked solution →Which financial application is named as modelled by exponential functions?Read the answer and worked solution →Hunt the exponential wordsRead the answer and worked solution →Merge to the solutionRead the answer and worked solution →Which ones belongRead the answer and worked solution →Finish the sentenceRead the answer and worked solution →Which is higherRead the answer and worked solution →

Worked practice questions

In an exponential function, which part of the expression holds the variable?

  1. The exponent
  2. The equipment
  3. The enclosure
  4. The engineer
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Correct answer: A. The exponent

1. An exponential function looks different from the ones met earlier. 2. The variable has moved to a new position in the expression. 3. In this function, the variable is the exponent. 4. So the answer is the exponent. _Source: OpenStax Intermediate Algebra 2e (CC BY 4.0), Ch 10, sections 10.1-10.2 'Evaluate and Graph Exponential Functions'_

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In the functions studied before exponentials, the variable was the:

  1. Bird
  2. Base
  3. Boat
  4. Bell
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Correct answer: B. Base

1. A squared function raises a variable to a fixed power. 2. There the variable sits underneath the power. 3. In the functions so far, the variables were the base. 4. Exponentials swap the two positions round. _Source: OpenStax Intermediate Algebra 2e (CC BY 4.0), Ch 10, sections 10.1-10.2 'Evaluate and Graph Exponential Functions'_

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A line that a graph approaches but never touches is called an:

  1. Asymptote
  2. Assumption
  3. Assortment
  4. Association
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Correct answer: A. Asymptote

1. Some graphs get closer and closer to a line without meeting it. 2. That line has a name of its own. 3. Whenever a graph approaches a line but never touches it, that line is an asymptote. 4. So the answer is an asymptote. _Source: OpenStax Intermediate Algebra 2e (CC BY 4.0), Ch 10, sections 10.1-10.2 'Evaluate and Graph Exponential Functions'_

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