Understanding Functions and Graphs

The video tutorial explains how to solve functions using graphs. It begins with a recap of solving functions through equations and introduces the concept of inputs (X) and outputs (Y). The tutorial emphasizes understanding these terms and demonstrates how to analyze graphs to determine the output for given inputs. Several examples are provided to illustrate the process, and the video concludes with a recap of the key points discussed.

What is the main focus of the video?

• Solving functions using equations and graphs

• Learning about algebraic expressions

• Understanding calculus

• Studying geometry

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In a function, what do we call the value that we input?

• Output

• Result

• Input

• Equation

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What is the output in a function?

• The equation

• The value we input

• The value we get out

• The graph

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When using a graph, what does the X-axis represent?

• The output

• The slope

• The input

• The equation

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CCSS.8.F.A.1

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If X is -1, what is the Y value according to the graph?

• 1

• -1

• 0

• 2

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For X = 4, where is the corresponding Y value on the graph?

• At -4

• At 0

• At 4

• At -1

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CCSS.8.F.A.1

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What is the Y value when X is -3?

• 1

• 3

• -3

• 0

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CCSS.8.F.A.1

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What is always inside the parentheses in a function notation?

• The equation

• Y

• X

• The graph

Tags

CCSS.8.F.A.1

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