Odpowiedź:
f(x) = 2x + b
a = 2
a)
x₀ = - b/a = - 3
- b/2 = - 3
- b = 2 * (- 3) = - 6
b = 6
y = 2x - 6
b)
y₀ = b = (0 , 4 )
b = 4
y = 2x + 4
c)
x₀ = - b/a = 8
- b/2 = 8
- b = 2 * 8 = 16
b = - 16
y = 2x - 16
d)
y = 2x + b
3 = 2 * 5 + b
3 = 10 + b
b = 3 - 10 = - 7
y = 2x - 7