Math Problem Statement
Solution
The question asks to identify the graph of , which is a transformation of the parent linear function.
Step-by-step breakdown:
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Starting equation:
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Simplify the equation: The equation is in slope-intercept form , where:
- Slope () = -2 (this means the line slopes downward at a steepness of 2 units for every 1 unit right)
- Y-intercept () = -2 (the line crosses the y-axis at -2)
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Graph properties:
- The line has a negative slope, so it should be slanting downwards from left to right.
- It should cross the y-axis at .
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Look at the options:
- The correct graph must match these properties: downward slope and y-intercept of -2.
Based on the image, Option B correctly shows these characteristics:
- It has a negative slope of -2.
- The y-intercept is -2.
Thus, the correct answer is Option B.
Would you like further clarification on any part of this explanation? Here are some follow-up questions that might help:
- How do you calculate the slope of a line from an equation?
- What is the slope-intercept form, and why is it useful?
- How do transformations (shifts and stretches) affect the graph of a parent function?
- Why does the negative sign in front of the slope affect the direction of the graph?
- Can we verify the graph by plotting points?
Tip: When determining a graph from an equation, always look for key features like slope and intercepts. These help quickly identify the correct graph.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Functions
Graphing
Formulas
Slope-intercept form: y = mx + b
Theorems
Linear equation properties
Graph transformations
Suitable Grade Level
Grades 8-10