rvalerieXlove rvalerieXlove

04-11-2019
Mathematics

contestada

Find the y-coordinate of the vertex:
f(2) = 2^2- 4(2) - 5.

Respuesta :

surjithayer10otahza surjithayer10otahza

04-11-2019

Answer:

Step-by-step explanation:

f(2)=2²-4(2)-5

f(x)=x²-4x-5

=x²-4x+4-4-5

=(x-2)²-9

vertex is (2,-9)

y co-ordinate of the vertex is -9

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