document.write( "Question 1200274: Given that f : x —> 2x^2 + 8x - 10 for the domain x ≥ k.
\n" ); document.write( "i) find the least value of k for which f is one-one.
\n" ); document.write( "ii) express f^-1(x) in terms of x in this case. \n" ); document.write( "

Algebra.Com's Answer #834539 by Solver92311(821) $\"\"$ $\"About$

You can put this solution on YOUR website!
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is the

-coordinate of the vertex of the parabola.\r
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\n" ); document.write( "\n" ); document.write( "Substitute

for

. Then solve for

in terms of

. Then swap

for

and replace

with

on the domain established by the first part of the problem.\r
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\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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\r
\n" ); document.write( "\n" ); document.write( "From
\n" ); document.write( "I > Ø
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