Question

dado a função y= 2x+1 calcule
a) f(4)
b)f (-3)
c) f (0)
d) f (1/-3)​

Answer 1

Se f(x) = 2x + 1, temos:

a) f(4) = 2(4) + 1

f(4) = 8 + 1

f(4) = 9

b) f(-3) = 2(-3) + 1

f(-3) = - 6 + 1

f(-3) = - 5

c) f(0) = 2(0) + 1

f(0) = 0 + 1

f(0) = 1

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

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

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

f( - 1/3 ) = 1/3