document.write( "Question 139251: i have tried so hard to figure out this problem but it seems so difficult. \r
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document.write( "Given the function f(x)=2x^2-8x+3, answer the following questions using specific language to explain each step performed.
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document.write( "1.)determine the nature of the roots, using the discriminant.
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document.write( "2.) solve by using the quadratic formula
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document.write( "3.) graph using vertex roots and direction
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document.write( "4,)what is the minimum? maximum?
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document.write( "5.) what is the axis of symmetry?\r
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document.write( "how do i show all of this?
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Algebra.Com's Answer #101532 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Given the function f(x)=2x^2-8x+3, answer the following questions using specific language to explain each step performed. \n" ); document.write( "---------------------------- \n" ); document.write( "1.)determine the nature of the roots, using the discriminant. \n" ); document.write( "discriminant = b^2-4ac \n" ); document.write( "d = 8^2-4*2*3 = 64 - 24 = 40 > 0 \n" ); document.write( "Since d>0, the function has two unequal Rean Number solutions. \n" ); document.write( "---------------------------------------- \n" ); document.write( "2.) solve by using the quadratic formula \n" ); document.write( "x = [8 +- sqrt(40)]/4 \n" ); document.write( "x = 2 +- (1/2)sqrt(10) \n" ); document.write( "------------------------------- \n" ); document.write( "3.) graph using vertex roots and direction \n" ); document.write( "Vertex occurs at x=-b/2a = 8/4 = 2 \n" ); document.write( "f(2) = 8-16+3 = -5 \n" ); document.write( "Vertex: (2,-5) \n" ); document.write( "Direction:Since the coefficient of x^2 is positive, the parabola opens up. \n" ); document.write( " \n" ); document.write( "------------------------ \n" ); document.write( "4,)what is the minimum? \n" ); document.write( "y=-5 \n" ); document.write( "maximum? \n" ); document.write( "There is no maximum as the parabola opens up. \n" ); document.write( "--------------------------- \n" ); document.write( "5.) what is the axis of symmetry? \n" ); document.write( "The vertical line thru the vertex: x=2 \n" ); document.write( "========================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |