What is the equation in point-slope form of the line passing through (2, 5) and (−1, 8)?
y + 5 = 1(x + 2)
y + 8 = −1(x − 1)
y − 5 = −1(x − 2)
y − 8 = 1(x − 2)

Megan and desmond each add the same amount of water to their aquarium megan makes 5 ml of chemical solution with every gallon of water for her aquarium desmond mixed 8 ml of chemical solution for every 2 gallon of the water for his aquarium.