Question

dados f(x)=x+5 g(x)=2x-3 h(x)=x-2x+3. calcule:

Answer 1

Resposta:

Explicação passo-a-passo:

A) f(2)= 2+5=7

B) f(-1)= -1+5=4

C) g(3) = 2*3 -3= 6-3 = 3

D) h( -2)= -2²-2*2+3 =  4-4+3 = 3

E) h(4) = 4²-2*4+3 =  16-8+3 = 8+3 = 11

F) f(x)  x=1

f(1)= 1+5 = 6

G) g(x) =7

7=2x-3

7+3=2x

10=2x

10/2=x

5=x

Answer 2

Resposta:

A) f(2)= 2+5=7

B) f(-1)= -1+5=4

C) g(3) = 2*3 -3= 6-3 = 3

D) h( -2)= -2²-2*2+3 =  4-4+3 = 3

E) h(4) = 4²-2*4+3 =  16-8+3 = 8+3 = 11

F) f(x)  x=1

f(1)= 1+5 = 6

G) g(x) =7

7=2x-3

7+3=2x

10=2x

10/2=x

5=x