Friday

July 25, 2014

July 25, 2014

Posted by **Kamath** on Sunday, May 10, 2009 at 2:35pm.

f(x)=1/5(x+7)^2+7

I need to find the vertex line of symmetry max/min and is the value f(-7)=7 a minimum or a maximum?

- algebra I need immediate help with this question T -
**Damon**, Sunday, May 10, 2009 at 2:57pmYou typed that so I am not sure what you mean.

y = (1/5) (x+7)^2 + 7

or

y = 1/[5(x+7)^2] + 7

I will assume the first.

then

(y-7) = (1/5)(x+7)^2

when x = -7 (the axis of symmetry), the right is zero so y = 7

as x gets big or very negative, y gets big so parabola faces up (holds water).

Therefore the vertex at (-7,7) is a minimum

- To Damon -
**Kamath**, Sunday, May 10, 2009 at 3:04pmThanks so much I just looked at my answers and I realized I had gotten the right answers after all. Many thanks

**Related Questions**

algebra urgently need help - I have been working on these 2 problems and I think...

algebra need help soon - I have been working on these 2 problems and I think I ...

Math - I need help with these three math question. 1st question. What is the ...

math - Need help with algebra question If c= 5/9 (F-32)and F is 77 then what is ...

math - When simplifying a rational fraction, why do you need to factor the ...

English - I need to think of a question to write about for my inquiry paper and ...

BIO - I really need help with this question, Damon gave me an answer, but I do ...

history--search for earlier post - i wrote a history question a few days back, i...

Algebra help - I need some help I posted the first question to this a bit ago ...

algebra - x^2+3x-12=0 I need to factor this and thought I knew how, but I can't ...