Answer:
D
Explanation:
The multiple "4" is the stretch factor. The stretch is parallel to y-axis, which is a vertical stretch
f(x) = x^2
g(x) = 4*x^2
=> For a value of x, the g(x) is 4 times larger than f(x).
=> g(x) is the stretched version of f(x) with stretched ratio = 4).
=> Option D is correct
Hope this helps!
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