document.write( "Question 236552: Attempting to find domain/range answers, points are (1,-1),(7,3). Problem is to find the following:
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document.write( "a. f(4)=
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document.write( "b. What is the domain? {x|_}, determine all x values such that f(x)=1
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document.write( "c. x=
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document.write( "d. What is the range? {y|_}
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document.write( "Please advise and thank you! \n" );
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Algebra.Com's Answer #174100 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Attempting to find domain/range answers, points are (1,-1),(7,3). \n" ); document.write( "Find the equation: \n" ); document.write( "slope = (3--1)/(7-1) = 4/6 = 2/3 \n" ); document.write( "intercept = ? \n" ); document.write( "-1 = (2/3)(1) = b \n" ); document.write( "b = (-5/3) \n" ); document.write( "So, Equation is f(x) = (2/3)x - (5/3) \n" ); document.write( "----------------------------------------------\r \n" ); document.write( "\n" ); document.write( "Problem is to find the following: \n" ); document.write( "a. f(4)= (2/3)(4)-(5/3) = 8/3 - 5/3 = 1 \n" ); document.write( "------------------------------------------------ \n" ); document.write( "b. What is the domain? {x|all Real Numbers}; \n" ); document.write( "----------- \n" ); document.write( "determine all x values such that f(x)=1 \n" ); document.write( "(2/3)x-(5/3) = 1 \n" ); document.write( "2x - 5 = 3 \n" ); document.write( "2x = 8 \n" ); document.write( "c. x = 4 \n" ); document.write( "------------------------------------------------ \n" ); document.write( "d. What is the range? {y|all Real Numbers} \n" ); document.write( "Note: Any linear equation that does not have a zero slope \n" ); document.write( "has Domain = All Real Numbers and Range = All Real Numbers. \n" ); document.write( "================================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |