Question

Dada a função: f(x) = -2 x + 3, determine:
f(1/2)
f(3)
f(1/3)
f(2/3)

Answer 1

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

f(3) = -2 * 3 + 3
f(3) = -6 + 3 f(3) = -3

f(1/3) = -2 * 1/3 + 3
f(1/3) = -2/3 + 3
f(1/3) = -2/3 + 9/3 = f(1/3) = 7/3

f(2/3) = -2 * 2/3 + 3
f(2/3) = -4/3 + 3
f(2/3) = -4/3 + 9/3 = f(2/3) = 5/3