Example

Example: Graphing f(x)=(x+1)22f(x) = (x+1)^2 - 2

To graph a quadratic function involving multiple transformations, such as f(x)=(x+1)22f(x) = (x+1)^2 - 2, identify the horizontal shift constant hh and the vertical shift constant kk. Comparing it to the standard transformation form f(x)=(xh)2+kf(x) = (x-h)^2 + k, rewrite the function as f(x)=(x(1))2+(2)f(x) = (x-(-1))^2 + (-2). This shows that h=1h = -1 and k=2k = -2. A negative hh indicates a horizontal shift to the left by 11 unit, while a negative kk indicates a vertical shift downward by 22 units. By starting with the basic parabola f(x)=x2f(x) = x^2, shifting it left 11 unit, and then down 22 units, you produce the final graph of f(x)=(x+1)22f(x) = (x+1)^2 - 2.

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Updated 2026-05-25

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