PurpleOcean PurpleOcean

12-04-2022
Mathematics

contestada

please help me solve this!!!!!!

please help me solve this class=

Respuesta :

12-04-2022

Answer:

C. 9

Step-by-step explanation:

y = -4x^2 + 2kx

subtitute 3:

y = -4(9)^2 + 2k(9)

y = -4(81) + 18k

let y = 0

=> 0 = -324 + 18k

=> k = 324/18 = 9

this is my calculations hope it helps

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