anonymous
  • anonymous
What is the possible discriminant of the graph? a. –17 b. 0 c. 12 d. 49
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
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anonymous
  • anonymous
i dont know what discriminant means?
anonymous
  • anonymous
thats ok if u dont know, thanks anyway

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anonymous
  • anonymous
i could answer the question for u if u tell me
anonymous
  • anonymous
its basically, the answer to part of the quadratic equation which is b^2 - 4ac
anonymous
  • anonymous
i c ok 1 sec
anonymous
  • anonymous
i think its 0, b, b/c it only has one x intercept, am i right?
anonymous
  • anonymous
..
anonymous
  • anonymous
well, if what you said for discriminate is correct then the answer I got is 36 b^2 - 4ac (-6) ^2 - 4 a(0) -6^2 = 36 -4a(0) = 0 but 36 is not one of the answers, did i do something wrong?
anonymous
  • anonymous
the equation of the graph is \[y=(x+5)^2\] which is equivalent to y = x^2+10 x+25 hence a=1,b=10 and c=25. the discriminant is 10^2 -(4)(1)(25)=0
anonymous
  • anonymous
Oh i see, I thought that the (B,C) above the point was supposed to be b and c to solve the equation but instead you find the actual equation and solve with that. Thanks, event though this wasn't my question.
anonymous
  • anonymous
its a negative 5
anonymous
  • anonymous
Really? wow okay, i'm stupid, bad resolution on my screen made it look like b and c not -5 and 0 sorry.
anonymous
  • anonymous
its okay, so now what?
anonymous
  • anonymous
umm.. read what Safiah said.
anonymous
  • anonymous
i did but its not a Positive 5
anonymous
  • anonymous
on the graph its a 5
anonymous
  • anonymous
-5
anonymous
  • anonymous
okay, then put in the negative, (x-5)^2 X^2-10x+25 a =1; b = -10; c = 25 b^2-4ac (-10)^2 - 4 (1)(25) 100 - 100 = 0 same answer (by the way, when graphing exponential equations, what ever number added to x inside those () will be moved to the left on the x-axis) what Safiah said was correct but even differently its the same answer
anonymous
  • anonymous
so its 0, b?
anonymous
  • anonymous
yea
anonymous
  • anonymous
thank u, so i was right bye

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