Suppose that F(x) = x3 and G(x) = -2x3 - 7. Which statement best compares the graph of G(x) with the graph of F(x)? A. The graph of G(x) is the graph of F(x) compressed vertically, flipped over the x-axis, and shifted 7 units to the right. B. The graph of G(x) is the graph of F(x) compressed vertically, flipped over the x-axis, and shifted 7 units down. C. The graph of G(x) is the graph of F(x) stretched vertically, flipped over the x-axis, and shifted 7 units down. D. The graph of G(x) is the graph of F(x) stretched vertically, flipped over the x-axis, and shifted 7 units to the right.
Question
Answer:
Reflections:A reflection or turning is the mirror image of a figure. It can also be said that it is the turning of points and graphs around the axes.
To graph y = -f (x), reflect the graph of y = f (x) on the x-axis. (Vertical reflection)
Resulting:
-x3
Expansions and Compressions:
Expansions and compressions are transformations that change the length or width of the graph of a function. The general form of the graph of a function expands or compresses vertically or horizontally.
To graph y = a f (x)
If a> 1, the graph of y = f (x) is expanded vertically by a factor a.
Resulting:
-2x3
Displacements (Translations)Translations are transformations that change the position of the graph of a function.
Suppose that k > 0
To graph y = f (x) - k, move the graph of k units down.
Resulting:
G (x) = -2x3 - 7
Answer:
C. The graph of G (x) is the graph of F (x) stretched vertically, reflected over the x-axis, and shifted 7 units down.
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