Question

data a função afim f(x)=2x+3.determine os valores de x para que

a) f(x)=1

B) f(x)=0

c) f(x)=1/3

d) f(x)=0,75
​

Answer 1

a)f(1)=2.1+3

f(1)=2+3

f(1)=5

b)f(0)=2.0+3

f(0)=0+3

f(0)=3

c)f(1/3)=2.(1/3)+3

f(1/3)=2/3+3

f(1/3)=11/3

d)f(0,75)=2.0,75+3

f(0,75)=1,5+3

f(0,75)=4,5 ou 9/2

Answer 2

Olá!

a) 2x+ 3= 1

2x= 1-3

2x= -2

x= -2/2

x= -1

b) 2x+ 3 = 0

2x= -3

x= -3/2

c) 2x+3= 1/3

2x= -8/3

x= -8/6

x= -4/3

d) 2x+3= 0,75

2x= 0,75 -3

2x= -2,25

x= -2,25/ 2

x= -1,125

Bons estudos!

T.H.S