Question

dada a função f(x) = 2x+3, calcule: a) f(x)=3 b) f(x)=1 c) f(x)=-7 d) f(x)=0​

Answer 1

a) f(x) = 3 = 9

f(x) = 2x+3,

f(3) = 2.3+3,

f(3) = 6+3,

f(3) = 9

b) f(x) = 1 = 5

f(1) = 2.1+3,

f(1) = 2+3,

f(1) = 5

c) f(x) = - 7 = -11

f(-7) = 2.(-7)+3,

f(-7) = -14 +3,

f(-7) = - 11

d) f(x) = 0 =  3

f(0) = 2.0+3,

f(0) = 0 + 3

f(0) =  3

Bons estudos ;)