document.write( "Question 352622: Given the linear function f(x)=-1/2x -4\r
\n" ); document.write( "\n" ); document.write( "a) Find f(-4). My answer is -9/2.
\n" ); document.write( "b) Determine the coordinates of the x-intercept. My answer is x=-1/2.
\n" ); document.write( "c) Determine the coordinates of the y-intercept. My answer is no y intercept.
\n" ); document.write( "d) Explain the difference between the x-intercept and the y-intercept. Not sure as to this answer.
\n" ); document.write( "d) Determine the slope. My answer is m=0, b=-9/2.
\n" ); document.write( "e) Determine the slope of a line perpendicular to this line. Not sure\r
\n" ); document.write( "\n" ); 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
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #252019 by Alan3354(69443)\"\" \"About 
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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
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\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)
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\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)
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\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.
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\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.
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\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
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