7kvq2vtgr5
7kvq2vtgr5 7kvq2vtgr5
  • 21-06-2022
  • Mathematics
contestada

let f(x)=7x+4 find each value
A. f(x) when x = -8
B. f(3)
C. x when f(x) = 67

let fx7x4 find each value A fx when x 8 B f3 C x when fx 67 class=

Respuesta :

KONSETON
KONSETON KONSETON
  • 21-06-2022

Answer:

f(x)=7x+4


When x=-8

f(-8)=7·(-8)+4=-56+4=-52


When x=3

f(3)=7·3+4=21+4=25


When f(x)=67, then :

7x+4=67

7x=63

x=9

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