Question

Write the equation of the quadratic function with roots -9 and and -3 and a vertex at (-6, -1).

Answer 1

x^2+11x+27=0

Answer 2

Thanks A bunch!!

Answer 3

sorry its not 11x its 12x

Answer 4

Write the equation of the quadratic function with roots -1 and 1 and a vertex at (0, -3)? and okay

Answer 5

Write the equation of the quadratic function with roots 6 and 10 and a vertex at (8, 2)?

Answer 6

x^-1=0

Answer 7

(x + 3)(x + 9) = x^2 + 12x + 27
now you need to check vertex which has x coordinate of -2b/a = -b/2a = -12/2 = -6

so we have correct equation

Answer 8

Which one is that?

Answer 9

the one with roots -1 and 1

Answer 10

* - b/2a not -2a/b - first one

Answer 11

x^2-16x+60=0

Answer 12

so what are the answers for the 2 i just asked about?

Answer 13

x^2 1 = 0 is answer to second q

Answer 14

x^2-16x+60=0 is the equation for roots 6 and 10

Answer 15

and the first question is x^2-1=0?

Answer 16

no that is your 2nd question

Answer 17

x^2-1=0 equation for roots -1 and 1

Answer 18

and the answer x^2-16x+60=0 is to the question Write the equation of the quadratic function with roots 6 and 10 and a vertex at (8, 2) right?

Answer 19

yap

Answer 20

by simply using this formula you ca easily ger the equation
x^2-sx+p=0
where s= sum of the roots
and p=product of the roots

Answer 21

thanks a bunch i will have some more questions in a little bit :)

Answer 22

Write the equation of the quadratic function with roots 0 and 1 and a vertex at (1/2, -2/3)

Answer 23

x^2-x=0

Answer 24

how do i show graphs? because i am stuck on a couple questions ?

Answer 25

you mean you want to draw the graphs for these equations