Posted by **Sabrina** on Tuesday, May 7, 2013 at 10:19pm.

Find the coordinates of the vertex and determine whether the graph opens up or down. y=-x^2+x-5

- Algebra -
**Steve**, Tuesday, May 7, 2013 at 10:39pm
it opens up, because the (x^2) is positive. if it was negative, it would open down. The vertex is as follows:

to find the value of vertex, solve first for when x=o, then when y=0

- Algebra -
**Different Steve**, Wednesday, May 8, 2013 at 11:10am
Actually, note that

y=-x^2+x-5

so it opens downward

y = -(x^2 - x + 1/4) - 5 + 1/4

= -(x - 1/2)^2 - 19/4

Now it should be clear where the vertex lies.

## Answer This Question

## Related Questions

- Algebra - Tell whether the graph opens up or down. Find the coordinates of the ...
- Intermediate Algebra - For the quadratic equation y=(x-3)^2-2. Determine: A) ...
- Intermediate Algebra - For the quadratic equation y=(x-3)^2-2. Determine: A) ...
- algebra(reiny) - Hey thanks for all your help but you kinda confused me on a few...
- Algebra 2 - Point (-6,-2) lies on a parabola that has its vertex at (0,1). Write...
- algebra (parabolas) - tell whether the graph opens upward or downward. then find...
- 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 ...
- algebra - 1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. ...
- math algebra trig - For the graph of each function, find an equation of the line...

More Related Questions