Posted by **Izzy** on Thursday, March 1, 2012 at 7:32pm.

Tell whether the graph opens upward or downward. Then find the axis of symmetry and vertex of the graph of the function.

y=-1/4x^2-24

- Math; Please Help!o: -
**MathMate**, Thursday, March 1, 2012 at 7:39pm
y=-1/4x^2-24

Hints:

If the leading coefficient of a quadratic expression is negative, it opens downwards.

For a general quadratic equation

y=ax²+bx+c,

The axis of symmetry is at the line

y=-b/2a

- Math; Please Help!o: -
**Poop.**, Thursday, March 1, 2012 at 7:45pm
Which one is the B in my equation?

- Math; Please Help!o: -
**MathMate**, Thursday, March 1, 2012 at 8:57pm
y=ax˛+bx+c,

b is the coefficient of the term in x.

Since your expression does not have an x-term, b=0.

- Math; Please Help!o: -
**Poop.**, Thursday, March 1, 2012 at 10:07pm
Thank you!

- Math; Please Help!o: :) -
**MathMate**, Thursday, March 1, 2012 at 10:17pm
You're welcome!

## Answer This Question

## Related Questions

- algebra (parabolas) - tell whether the graph opens upward or downward. then find...
- Algebra - Tell whether the graph opens up or down. Find the coordinates of the ...
- math help,algebra - Okay this is what i have to do but i think i am doing ...
- algebra (parabolas) - find the axis of symmetry and vertex of the function. tell...
- algebra (parabolas) - find the axis of symmetry and vertex of the function. tell...
- math-please help,need quickly - find the slant asymptote of the graphof the ...
- ALGEBRA 1 - Please check for me.Without drawing the graph of the given equation ...
- ALGEBRA 1 - Please check for me.Without drawing the graph of the given equation ...
- math, algebra,graphs help - THe directions state: (A)Complete the table, (B) ...
- Algebra,Math, graphs help - This is what the directions state to do: (A) ...

More Related Questions