Fy 8
6
Finish the steps below to write a quadratic function for
the parabola shown.
1.
Use the vertex form, f(x) = a(x - h)2 + k, and
substitute in the values for h and k.
f(x) = Q(x - 5)2 + 3
2. Use another point and substitute in values
for x and f(x). Solve for a.
5 = a(6-5)2 + 3
3. Write the function, using the values for h, k,
and a
(65)
N
Vertex:
(5,3)
X
2
4
6
8
8
The function is f(x) =
(x

b). 4320 have a nice day

the answer is 8/21

hope this

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)