12) From the given image, the domain of the function in interval notation is:
(-∞, 4]
the domain as an inequality is:
x ≤ 4
the range of the function in interval notation is:
(-∞, 7]
the range as an inequality is:
y ≤ 7
14) From the given image, the domain of the function in interval notation is:
(-∞, ∞)
the domain as an inequality is:
-∞ < x < ∞
the range of the function in interval notation is:
(-∞, 8]
the domain as an inequality is:
y ≤ 8
