savannahke savannahke
  • 01-11-2020
  • Mathematics
contestada

f(x)= -4x² + 5x
find f(6).

Respuesta :

CHERLYNnotCHERRY
CHERLYNnotCHERRY CHERLYNnotCHERRY
  • 01-11-2020

Answer:

The answer is -114.

Step-by-step explanation:

You have to substitute x = 6 into the function :

[tex]f(x) = - 4 {x}^{2} +5 x[/tex]

[tex]f( 6) = - 4 {(6)}^{2} + 5(6)[/tex]

[tex]f(6) = - 4(36) + 30[/tex]

[tex]f(6) = - 144 + 30[/tex]

[tex]f(6) = - 114[/tex]

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