Asked by Andrea
Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the x-axis and then the y-axis. Does the order of the reflections matter?
Answers
Answered by
Steve
x then y: (x,y)->(x,-y)->(-x,-y)
y then x: (x,y)->(-x,y)->(-x,-y)
f(x) -> -((-x)^3+2(-x)^2-(-x)+5)
y then x: (x,y)->(-x,y)->(-x,-y)
f(x) -> -((-x)^3+2(-x)^2-(-x)+5)
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