Math Problem Statement
Function g is a transformation of the parent function f(x) = x2. The graph of g is a translation left 4 units and down 2 units of the graph of f. Write the equation for g in the form y = ax2 + bx + c.
Solution
The parent function is . The transformation described involves translating the graph of left by 4 units and down by 2 units.
Step 1: Translation left 4 units
A leftward translation of 4 units changes the input to . So, the function becomes:
Step 2: Translation down 2 units
A downward translation of 2 units subtracts 2 from the function:
Step 3: Expand and simplify the equation
Now, expand : Thus, the function becomes: Simplify:
Final equation:
This is the equation of the transformed function in the form .
Do you want more details or have any questions?
Here are 5 related questions to expand on this concept:
- What would be the equation if the graph were shifted right 3 units and up 5 units?
- How does a vertical stretch or compression affect the graph's equation?
- What is the vertex of the function ?
- How would a reflection over the x-axis change the equation of the function?
- How would you find the x-intercepts of ?
Tip: Always expand and simplify the quadratic equation after performing translations to ensure it is in standard form.
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Math Problem Analysis
Mathematical Concepts
Algebra
Transformations of Functions
Quadratic Equations
Formulas
Transformation of functions
Quadratic equation formula y = ax^2 + bx + c
Theorems
Transformation theorem for translations of functions
Suitable Grade Level
Grades 9-11
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