(10,337),(15,340)
slope = (340 - 337) / (15 - 10) = 3/5
y = mx + b
slope(m) = 3/5
(10,337)....x = 10 and y = 337
now we sub into the formula and solve for b, the y int
337 = 3/5(10) + b
337 = 6 + b
337 - 6 = b
331 = b
so ur equation is : y = 3/5x + 331 or 3x -5y = - 1655