document.write( "Question 374505: List the transformations, in order, for the following function:
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document.write( "f(x)=4-3^x-1\r
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document.write( "The first thing I did was rewrite the function: f(x)=-3^(x-1)+4\r
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document.write( "- Horizontally shifts 1 unit to the right (because of (x-1))
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document.write( "- Reflects about the x-axis (because of the negative in front of the 3)
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document.write( "- Vertically shifts 4 units up (because of the +4)\r
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document.write( "Is this correct?\r
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document.write( "Does the function vertically stretch by a factor of 3? \r
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document.write( "In my notes a compress/stretch is said to be: a > 1 then vertically stretches by factor of a
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document.write( "0 < a < 1 vertically compresses by factor of a\r
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document.write( "But the instructor walked us through this problem but did not mention anything about a vertical stretch or compression. \n" );
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Algebra.Com's Answer #266543 by jsmallt9(3759) ![]() You can put this solution on YOUR website! The first thing I did was rewrite the function: f(x)=-3^(x-1)+4\r \n" ); document.write( "\n" ); document.write( "- Horizontally shifts 1 unit to the right (because of (x-1)) \n" ); document.write( "- Reflects about the x-axis (because of the negative in front of the 3) \n" ); document.write( "- Vertically shifts 4 units up (because of the +4)\r \n" ); document.write( "\n" ); document.write( "Is this correct? \n" ); document.write( "Yes. \n" ); document.write( "Does the function vertically stretch by a factor of 3? \n" ); document.write( "No. \n" ); document.write( "In my notes a compress/stretch is said to be: a > 1 then vertically stretches by factor of a \n" ); document.write( "0 < a < 1 vertically compresses by factor of a \n" ); document.write( "This is all correct. However, your \"base\" function, from which the transformations are made, is \n" ); document.write( " \n" ); document.write( "The \"3\" is part of the base function. If you had \n" ); document.write( " \n" ); document.write( "Then the \"2\" would be the vertical stretch factor. Your f(x) does not have any vertical stretch factor (other than 1 (which is \"no stretch\")). \n" ); document.write( " |