document.write( "Question 362853: Good evening, I'm having trouble determining how to find the x-intercepts of the following function:
\n" ); document.write( "y = 2(x-3)^2 - 23
\n" ); document.write( "I found the y-intercept by setting x to zero:
\n" ); document.write( "y = 2(0-3)^2 - 23
\n" ); document.write( "y = 18-23
\n" ); document.write( "y = -5
\n" ); document.write( "However, I know I'm not finding the x-intercepts correctly, as I'm only coming up with one x-intercept using the quadratic equation:
\n" ); document.write( "x = [12 +/- sqrt(144 - 4(2)(18))] / 2(2)
\n" ); document.write( "x = (12 +/- 0)/4
\n" ); document.write( "x = 3
\n" ); document.write( "Could you let me know how I should be finding the x-intercept? Thanks so much for sharing your knowledge with us students :)
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #258648 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
y = 2(x-3)^2 - 23
\n" ); document.write( "for x intercept y =0
\n" ); document.write( "2(x-3)^2=23
\n" ); document.write( "(x-3)^2=23/2
\n" ); document.write( "take the square root
\n" ); document.write( "x-3 = +/- sqrt(23/2)
\n" ); document.write( "x1= 3+sqrt(23/2)
\n" ); document.write( "6.39
\n" ); document.write( "x2=3-sqrt(23/2)
\n" ); document.write( "x2=-0.39
\n" ); document.write( ",,,
\n" ); document.write( "your intercepts are ready!
\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( "
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