# Math

posted by .

Select the x-coordinate of the vertex of the parabola defined by the function f(x) =-5x^2+7x+8

• Math -

in general the x of the vertex is given by -b/(2a)
= -7/-10
= 7/10

## Similar Questions

1. ### math

Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -7x^2 + 3x + 1.
2. ### math help

6) Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -7x^2 + 3x + 1. a) - 7/3 b) 1 c) 3/14 d) - 3/7
3. ### algebra

please help me figure this select x-coordinate of the vertex of the parabola defined by the function f(x) = -5x^2 + 9x + 2
4. ### algebra

I need to find the x coordinate of the vertex of parabola defined by f(x)= -5x^2 + 9x + 2 Can you please show steps. Thank you
5. ### math

Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -7x2 + 5x + 9. -7/5 9 5/14 -5/7
6. ### Math

Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -3x2 + 5x + 8.
7. ### math

help select the x coordinate of the vertex of paraloa defined by function f(x) -5x^2+7x+3 stck between two options =5/7 or -7/5
8. ### mat/117

Select the x-coordinate of the vertex of the parabola defined by the function f(x)=-5x^2+3x+1
9. ### mqr/117

Select the x-coordinate of the vertex of the parabola defined by the function f(x)=5x^2+3x+1
10. ### Algebra1

A parabola is defined as f(x)=a(x–8)2+9, where a is a positive real number. As a increases, What happens to the x-coordinate of the parabola’s vertex?

More Similar Questions