document.write( "Question 1023372: Suppose that for a function f , the equation f (x) = 0 has exactly one real-number solution. Which of the following statements MUST be true? \r
\n" ); document.write( "\n" ); document.write( "a.f is a linear function.
\n" ); document.write( "b.f (x) ≥ 0 for all x in the domain of f.
\n" ); document.write( "c.f is an invertible function.
\n" ); document.write( "d.f has exactly one x-intercept.
\n" ); document.write( "

Algebra.Com's Answer #638948 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
d. f(x) has exactly one x-intercept. The root of f(x) corresponds to the x-coordinate of the x-intercept. \n" ); document.write( "
\n" );