Can you please help me with this homework

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years