Question

considerando a funçao f:R - R,onde f(x)=5x -1 determine:
A)F(0)
B)F(-1)
C)F(10)

Answer 1

f(x) =5x-1


A)f(0)=5x-1
5(0)-1=-1

(0,1)

B) f(-1)=5x-1
5(-1)-1=-5-1=-6

(-1,-6)

C) f(10)=5x-1
5(10)-1=50-1=49

(10,49)

Answer 2

a)
f(x) = 5x - 1
f(0) = 5.0 - 1
f(0) = 0 - 1
f(0) = - 1

b)
f(-1) = 5.(-1) - 1
f(-1) = - 5 - 1
f(-1) = - 6

c)
f(10) = 5.10 - 1
f(10) = 50 - 1 
f(10) = 49