anonymous
  • anonymous
Parabola question Please help
Mathematics
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
whats the question
anonymous
  • anonymous
what is the discriminate of this equation: y=-4(x-3)^2+8
anonymous
  • anonymous
hears the graph

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
the discriminant is 2128 do you want me to explain it as well?
anonymous
  • anonymous
you can simply calculate the discriminate \[b^{2} - 4ac\] by putting the equation in the form \[y=ax^{2} + bx +c\]
anonymous
  • anonymous
Please explain Sorry had bad internet
anonymous
  • anonymous
@zainulafaq is it 2128 or 128 ?
anonymous
  • anonymous
does the B and C stand as coordinates
anonymous
  • anonymous
firstly expand the equation to standard for i.e \[a x^{2} +bx +c\] which in this case is \[-4x^2 +24x -28\]
anonymous
  • anonymous
a, b, c are coefficients of \[x^2 , x \] and constant respectively in the expanded form . .
anonymous
  • anonymous
no they are not coordinates it tells u the nature of the roots whether they are real or imaginary
anonymous
  • anonymous
k I got it so far Do we solve for x?
anonymous
  • anonymous
then use the formula for discriminant as @Avva has suggested to find value of discriminant a=-4, b-24, c= -28
anonymous
  • anonymous
??
anonymous
  • anonymous
No if the question asks for discriminant you just have to tell the numerical value of \[[b^2 - 4ac] \]
anonymous
  • anonymous
k so if we plug in the numbers -24^2-4(-4)(-28)
anonymous
  • anonymous
right?
anonymous
  • anonymous
exactly thats perfect
anonymous
  • anonymous
and we simplify to get our answer right
anonymous
  • anonymous
@zainulafaq so is it 130 and my work is shown below @zainulafq -24^2-4(-4)(-28) 576+16(-28) 576-448=130
anonymous
  • anonymous
all of it is excellent except for last step . . 576-448 = 128 not 130 . . .
anonymous
  • anonymous
whoops so 128 is my answer
anonymous
  • anonymous
yup now its fine :)
anonymous
  • anonymous
thanks
anonymous
  • anonymous
welcome :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.