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Athentsu
 one year ago
Hi guys, thanks in advance
What is the possible discriminant of the graph?
–16
0
12
36
Athentsu
 one year ago
Hi guys, thanks in advance What is the possible discriminant of the graph? –16 0 12 36

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AravindG
 one year ago
Best ResponseYou've already chosen the best response.1As the graph doesnt touch the x axis it means the quadratic has not got any roots .This means discriminant<0 .Can you do it now?

Athentsu
 one year ago
Best ResponseYou've already chosen the best response.0Oh! I see, as long as it doesn't touch the x axis the discriminant might turn out to be 0?

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1Nope when discriminant=0 there is only one root .The graph touches x axis exactly at one point. When D>0 there are two roots so graph cuts x axis at 2 points.The case where D<O graph floats above/below x axis as shown in your figure

Athentsu
 one year ago
Best ResponseYou've already chosen the best response.0Yes, thanks, got it now

AravindG
 one year ago
Best ResponseYou've already chosen the best response.1Yw ... Btw Welcome to Openstudy Community :)
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