document.write( "Question 352622: Given the linear function f(x)=-1/2x -4\r
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document.write( "a) Find f(-4). My answer is -9/2.
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document.write( "b) Determine the coordinates of the x-intercept. My answer is x=-1/2.
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document.write( "c) Determine the coordinates of the y-intercept. My answer is no y intercept.
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document.write( "d) Explain the difference between the x-intercept and the y-intercept. Not sure as to this answer.
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document.write( "d) Determine the slope. My answer is m=0, b=-9/2.
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document.write( "e) Determine the slope of a line perpendicular to this line. Not sure\r
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document.write( "If you can help me as to if it's right and explain the ones I did not do, and how you solved it.\r
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document.write( "Thanks \n" );
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Algebra.Com's Answer #252019 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Given the linear function f(x)=-1/2x -4 \n" ); document.write( "Assuming you mean (-1/2)x - 4: \n" ); document.write( "a) Find f(-4). My answer is -9/2. \n" ); document.write( "f(-4) = (-1/2)*-4 - 4 = +2 - 4 = -2 \n" ); document.write( "------------------- \n" ); document.write( "b) Determine the coordinates of the x-intercept. My answer is x=-1/2. \n" ); document.write( "@y = 0: -x/2 - 4 = 0 \n" ); document.write( "x = -8 or (-8,0) \n" ); document.write( "------------- \n" ); document.write( "c) Determine the coordinates of the y-intercept. My answer is no y intercept. \n" ); document.write( "@ x = 0: y = -4 \n" ); document.write( "(-4,0) \n" ); document.write( "------------ \n" ); document.write( "d) Explain the difference between the x-intercept and the y-intercept. Not sure as to this answer. \n" ); document.write( "At the x-int, y=0 and vice versa. \n" ); document.write( "--------------------- \n" ); document.write( "d) Determine the slope. My answer is m=0, b=-9/2. \n" ); document.write( "m = the coefficient of x = -1/2. b wasn't asked for, but it's -4. \n" ); document.write( "-------------------- \n" ); document.write( "e) Determine the slope of a line perpendicular to this line. Not sure \n" ); document.write( "The slope of lines perpendicular is the negative inverse of -1/2 \n" ); document.write( "m = +2 \n" ); document.write( " \n" ); document.write( " |