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

The 2nd question has a fraction and I think this is confusing me on this one

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 2:57pm
You 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 3:04pm
Thanks so much I just looked at my answers and I realized I had gotten the right answers after all. Many thanks

## Answer this Question

## 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 ...
- maths - how do i find out the the equation of the line of symmetry for f(x)=ax^2...
- Algebra - I need a jump start in setting up the equations etc when solving for ...
- Algebra 1B - This Question is in multiple sections. f(x)= -2x^2+2x+10 is the ...
- math help,algebra - Okay this is what i have to do but i think i am doing ...
- ALGEBRA - Find the vertex, the line of symmetry, the maximum or minimum value of...
- Algebra - Hi, Any help on this would be very much appreciated. The graph y=3x^2+...
- algebra - For the quadratic function f(x) = - x^2 +2x + 6, find the vertex and ...
- Algebra - All parabolas are symmetric with respect to a line called the axis of ...

More Related Questions