Question

Determine o valor numérico da função afim f(x)= -3x+4 para:
a) x=1
b)x=⅓
c)x=0
d)x=k+1

Answer 1

f(x) = -3x + 4

a) x = 1

f(1) = -3.1 + 4 = -3 + 4 = 1

b) x = 1/3

f(1/3) = -3.(1/3) + 4 = -3/3 + 4 = -1 + 4 = -3

c) x = 0

f(0) = -3.0 + 4 = 0 + 4 = 4

d)x = k + 1

f(k + 1) = -3.(k + 1) + 4 = -3k - 3 + 4 = -3k + 1