Answer:
domain ( - ∞, ∞ )
Step-by-step explanation:
there is no endpoint at either end of the line and it continues forever in both directions, then
domain is ( - ∞, ∞ )
(-infinity, +infinity)
(-infinity,+infinity) because at quadrant III, the line is extending forever into negative infinity, and in quadrant IV, the line is extending forever into positive infinity
