Jadedry
  • Jadedry
"Finding Quadratic functions" question! Need help with second part.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Jadedry
  • Jadedry
Find two quadratic equations of x which are zero at x=1 , which take the value 10 when x =0 , and which have a maximum value of 18.
Jadedry
  • Jadedry
I figured out that the first answer is: \[-2x^2 - 8x +10\] , but I'm having trouble finding the second equation.
Er.Mohd.AMIR
  • Er.Mohd.AMIR
since at x=1 it is zero so x-1 is factor of both eq.s .

Looking for something else?

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

More answers

Jadedry
  • Jadedry
I used \[ax^2 +bx +10\] as my " base equation" , used \[f(-b/2a) = \min/or/\max/point/\] Came up with: b= - 8 or (6+2/3) I can't take the second value of b and come up with the right answer. :c
Jadedry
  • Jadedry
@Er.Mohd.AMIR Ah! That's an interesting idea...
Jadedry
  • Jadedry
so (a-b) should always equal -10 , hmm.
Er.Mohd.AMIR
  • Er.Mohd.AMIR
a+b=-10
Er.Mohd.AMIR
  • Er.Mohd.AMIR
ax^2+bx+c=0 and x=1 give zero
Jadedry
  • Jadedry
C will always be 10, I think.
Jadedry
  • Jadedry
otherwise, it could never = 10 when x = 0.
Er.Mohd.AMIR
  • Er.Mohd.AMIR
c is equal to 10 and a+b+c=0 gives a+b=-c a+b=-10
IrishBoy123
  • IrishBoy123
use your method, you can also use the other root from the quadratic formula
IrishBoy123
  • IrishBoy123
\[b=\dfrac{32 \pm \sqrt{32^2 + 4(320)} }{2}\]
IrishBoy123
  • IrishBoy123
|dw:1446466899687:dw|
Jadedry
  • Jadedry
@irishboy123 Ah! Thank you! Needed that shove in the right direction haha.

Looking for something else?

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