ronaldo11322 ronaldo11322

31-05-2020
Mathematics

contestada

A parabola intersects the X-axis at X
= 3 and x= 9.
What is the x-coordinate of the parabola's vertex?

Respuesta :

jimrgrant1 jimrgrant1

31-05-2020

Answer:

x = 6

Step-by-step explanation:

The vertex lies on the axis of symmetry which is situated midway between the x- intercepts, thus x- coordinate of vertex is

[tex]x_{vertex}[/tex] = [tex]\frac{3+9}{2}[/tex] = [tex]\frac{12}{2}[/tex] = 6

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