Please help me do it i cant get it

What function has a range {yly< 5}? question on picture above^

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)

What is the equation of a line that passes through points (0, 4) and (-4,-8)?