document.write( "Question 462810: Without graphing, tell how many x-intercepts y = –3x2 + 4x + 4 has.\r
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Algebra.Com's Answer #317221 by richard1234(7193) $\"\"$ $\"About$

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The x intercepts occur when the function value equals zero. We don't need to find the zeros; all we need is the number of zeros, which can be obtained by finding the discriminant.\r
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\n" ); document.write( "\n" ); document.write( "The discriminant is b^2 - 4ac, or 4^2 - 4(-3)(4), which is positive, so the function has two x-intercepts (B). \n" ); document.write( "

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