Question

Completing square (Show Steps):

f(x) = -0.6 x^2+1.2 x+1.4
What is the Domain & Range?

Answer 1

what is with you with these problems???

Answer 2

lets to it the easy way

\[-\frac{b}{2a}=-\frac{1.2}{2\times -.6}=2\] so you will have
\[f(x)=-.6(x-2)^2+\text{something}\] and that "something" is
\[f(2)\]

Answer 3

f(x) = -(0.6) (x - 1)² + 2

Answer 4

that's the answer/

Answer 5

oh cramp that is wrong! it is
\[-\frac{b}{2a}=-\frac{1.2}{2\times -.6}=1\]

Answer 6

I didn't liked yesterday one, so made a new one! ;)

Answer 7

yeah 1 ! my arithmetic is bad

Answer 8

what is this ? and saifoo you asked a question?! i have only seen you answer them

Answer 9

so it will be
\[f(x)=-0.6(x-1)^2+\text { whatever } f(1) \text{ is}\]

Answer 10

haha violinplayer, i suck @ completing square.. so i asked for help! ;)

Answer 11

oh

Answer 12

-0.6 x^2+1.2 x+1.4

\[-0.6(-1)^2 +1.2(-1) + 1.4\]
Like this?

Answer 13

oh

Answer 14

Did you just ask and answer your own problem?

Answer 15

haha, yea.