# math help

posted by
**Anonymous**
.

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

posted by
**Anonymous**
.

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