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anonymous
 4 years ago
Where does the graph of x2  x  2 = y cross the xaxis?
anonymous
 4 years ago
Where does the graph of x2  x  2 = y cross the xaxis?

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zzr0ck3r
 4 years ago
Best ResponseYou've already chosen the best response.0when y = 0 x^2  x  2 = 0 x^2 +x2x2=0 x(x+1)2(x+1) = 0 (x+1)(x2)=0 x = ? and x = ?

zzr0ck3r
 4 years ago
Best ResponseYou've already chosen the best response.0when x = 1 (x+1)(x2) = (1+1)(12) = 2(1) = 2

zzr0ck3r
 4 years ago
Best ResponseYou've already chosen the best response.0almost break it up x+1 = 0 or x2 = 0

zzr0ck3r
 4 years ago
Best ResponseYou've already chosen the best response.0notice the only time two things multiplied by each other can = 0 is if one or the other is 0
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