Question

considere f:R> dada por F(x)=3x+4 , calcule a) F(1) = , b=F(0) , c) F(-1)= , d) F(1/2)=

Answer 1

F (x) = 3x + 4
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a) F (1) = 7  

F (1) = 3.1 + 4
F (1) = 3 + 4
F (1) = 7  

b) F (0) = 4

F (0) = 3.0 + 4

F (0) = 4

 

c) F (- 1) = 1

F (- 1) = 3.(- 1) + 4

F (- 1) = - 3 + 4

F (- 1) = 1

 

d) F (1/2) = 11/2

F (1/2) = 3.(1/2) + 4

F (1/2) = (3/2) + 4

F (1/2) = (3 + 8)/2

F (1/2) = 11/2