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creighton
 3 years ago
Parabola question Please help
creighton
 3 years ago
Parabola question Please help

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MilaCoolNess
 3 years ago
Best ResponseYou've already chosen the best response.0whats the question

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0what is the discriminate of this equation: y=4(x3)^2+8

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1the discriminant is 2128 do you want me to explain it as well?

Avva
 3 years ago
Best ResponseYou've already chosen the best response.0you can simply calculate the discriminate \[b^{2}  4ac\] by putting the equation in the form \[y=ax^{2} + bx +c\]

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0Please explain Sorry had bad internet

Avva
 3 years ago
Best ResponseYou've already chosen the best response.0@zainulafaq is it 2128 or 128 ?

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0does the B and C stand as coordinates

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1firstly expand the equation to standard for i.e \[a x^{2} +bx +c\] which in this case is \[4x^2 +24x 28\]

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1a, b, c are coefficients of \[x^2 , x \] and constant respectively in the expanded form . .

Avva
 3 years ago
Best ResponseYou've already chosen the best response.0no they are not coordinates it tells u the nature of the roots whether they are real or imaginary

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0k I got it so far Do we solve for x?

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1then use the formula for discriminant as @Avva has suggested to find value of discriminant a=4, b24, c= 28

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1No if the question asks for discriminant you just have to tell the numerical value of \[[b^2  4ac] \]

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0k so if we plug in the numbers 24^24(4)(28)

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1exactly thats perfect

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0and we simplify to get our answer right

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0@zainulafaq so is it 130 and my work is shown below @zainulafq 24^24(4)(28) 576+16(28) 576448=130

zainulafaq
 3 years ago
Best ResponseYou've already chosen the best response.1all of it is excellent except for last step . . 576448 = 128 not 130 . . .

creighton
 3 years ago
Best ResponseYou've already chosen the best response.0whoops so 128 is my answer
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