Written below (green dotted curve) is a graph of the function .If g(x) (blue solid curve) is a reflection of f(x) about the y-axis what is the equation for g(x)?
Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles40m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
- OLD 1. Angles and the Trigonometric Functions Coming soon
- OLD 2. Trigonometric Functions graphs, Inverse Trigonometric Functions Coming soon
- OLD 3. Trigonometric Identities and Equations Coming soon
- OLD 4. Laws of Sines, Cosines and Vectors Coming soon
- OLD 5. Complex Numbers, Polar Coordinates and Parametric Equations Coming soon
- NEW (not used) 7. Laws of Sines, Cosines and Vectors Coming soon
- NEW (not used) 8. Vectors Coming soon
- NEW(not used) 9. Polar equations Coming soon
- NEW (not used) 11. Graphing Complex Numbers Coming soon
0. Review of College Algebra
Transformations
Problem 3
Textbook Question
Fill in the blank(s) to correctly complete each sentence.
The graph of ƒ(x) = (x + 4)² is obtained by shifting the graph of y = x² to the ___ 4 units.
Verified step by step guidance1
Identify the base function: The given function is \( f(x) = (x + 4)^2 \), which is a transformation of the parent function \( y = x^2 \).
Recall the effect of horizontal shifts on the graph of \( y = x^2 \): Replacing \( x \) with \( x + h \) shifts the graph horizontally by \( h \) units.
Determine the direction of the shift: Since the function is \( (x + 4)^2 \), the graph shifts horizontally to the left by 4 units (because adding inside the parentheses moves the graph left).
Write the completed sentence: The graph of \( f(x) = (x + 4)^2 \) is obtained by shifting the graph of \( y = x^2 \) to the left 4 units.
Understand that horizontal shifts do not affect the shape of the parabola, only its position along the x-axis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Function Transformations
Function transformations involve shifting, stretching, or reflecting the graph of a base function. In this case, adding a constant inside the function's argument shifts the graph horizontally. Understanding how these changes affect the graph is essential for interpreting and sketching functions.
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Domain and Range of Function Transformations
Horizontal Shifts in Quadratic Functions
A horizontal shift occurs when a constant is added or subtracted inside the function's input, such as (x + h)². Specifically, f(x) = (x + 4)² shifts the graph of y = x² horizontally by 4 units. The sign inside the parentheses determines the direction of the shift.
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Phase Shifts
Graph of the Basic Quadratic Function y = x²
The graph of y = x² is a parabola centered at the origin with its vertex at (0,0). It opens upwards and is symmetric about the y-axis. Recognizing this base graph helps in understanding how transformations like shifts affect its position.
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Graphs of Secant and Cosecant Functions
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