SOLUTION: Determine whether the function f(x)=x^2-4x has an inverse.
I thought yes, that the graph passes the horizontal line test, but maybe it doesn't pass the horizontal test?
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Question 883205: Determine whether the function f(x)=x^2-4x has an inverse.
I thought yes, that the graph passes the horizontal line test, but maybe it doesn't pass the horizontal test?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
It doesn't -- f(x) is a parabola pointing upward, so you can draw a horizontal line that passes through two different points on the graph of f(x).
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