document.write( "Question 65567: There are several values of the function f(x)=-x^3+x^2-x+2. Complete the missing values., and then use these values and the intermediate value theorem to determine (an) interval(s) where the function must have a zero.\r
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document.write( "x: -2,-1,0,1,2; f(x): 16,...,...,...,-4\r
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document.write( "This was shown as a table where \"x\" was over f(x) and we have to find the missing variables and then solve. I would really appreciate some help. \n" );
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Algebra.Com's Answer #46188 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! f(x)=-x^3+x^2-x+2\r \n" ); document.write( "\n" ); document.write( "Complete the missing values., and then use these values and the intermediate value theorem to determine (an) interval(s) where the function must have a zero. \n" ); document.write( "x: -2,-1,0,1,2; f(x): 16,...,...,...,-4 \n" ); document.write( "------------ \n" ); document.write( "f(-2)=16 \n" ); document.write( "f(-2)=-(-1)^3+(-1)^2-(-2)+2=-1+1+2+2=4 \n" ); document.write( "f(0)=2 \n" ); document.write( "f(1)=-1+1-1+2=1 \n" ); document.write( "f(2)=-4 \n" ); document.write( "The change in sign occurs between x=1 and x=2 so there must \n" ); document.write( "be a zero on the interval (1,2) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |