Respuesta :
The x=coordinate of the axis of symmetry of this vertical parabola is given by
x = -b / (2a), and here a= 10 and b= -3. Then,
x = -(-3) / [2*10], or x = 3/20.
x = -b / (2a), and here a= 10 and b= -3. Then,
x = -(-3) / [2*10], or x = 3/20.