Question

what is the X co-ordinate of vertex of parabola where equation is Y is equal to X square + bx + c =\ o​

Answer 1

Answer:

x = - $\frac{b}{2}$

Step-by-step explanation:

Given a quadratic equation in standard form , that is

y = ax² + bx + c = 0 ; a ≠ 0

Then the x- coordinate of the vertex is

$x_{vertex}$ = - $\frac{b}{2a}$

x² + bx + c = 0 ← is in standard form

with a = 1, b = b, thus

$x_{vertex}$ = - $\frac{b}{2}$