y = mx + b slope(m) = -1/4 (15,0)...x = 15 and y = 0 now we sub 0 = -1/4(15) + b 0 = -15/4 + b 15/4 = b
y = -1/4x + 15/4 1/4x + y = 15/4....multiply by 4 x + 4y = 15.....and since it is a solid line, it contains an equal sign...and since it is shaded above the line, it is greater. so ur inequality is : x + 4y > = 15 (thats greater then or equal)