Given the function f(x) = x^2, which of the following represents a vertical shift of 3 units up?
![Given the function fx x2 which of the following represents a vertical shift of 3 units up class=](https://us-static.z-dn.net/files/d52/66b58f61a25d325345ed5a08cfbdb860.png)
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Answer:
f(x) = x² +3
Step-by-step explanation:
The transformation
g(x) = a·f((x -c)/b) +d
represents a vertical expansion by a factor of 'a', a horizontal expansion by a factor of 'b' (before the horizontal shift), a horizontal (right) shift by 'c' units, and an upward shift by 'd' units.
You want only an upward shift of 3, so ...
g(x) = f(x) +3
For f(x) = x^2, the shifted function is ...
f(x) = x^2 +3
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Other choices are ...
b. (x -3)^2 = right shift by 3
c. 3x^2 = vertical expansion by a factor of 3
d. (x +3)^2 = left shift by 3