What are the intercepts for $y=2x^2-10x-1$ ?

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Answer 1 · 2016-04-21T20:24:08

$y=-1$
$x_1=0,098$
$x_2=5,098$

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$y=2x^2-10x-1$

$"for x="0" "rArry=-1$

$"for y="0$

$2x^2-10x-1=0$

$Delta=sqrt(100+4*2*1)" "Delta=sqrt(108)" "Delta=10,39$

$x_1=(10-10,39)/4$

$x_1=(0,39)/4$

$x_1=0,098$

$x_2=(10+10,39)/4$

$x_2=(20,39)/4$

$x_2=5,098$

What are the intercepts for y=2x^2-10x-1y=2x^2-10x-1?