A, 2a, 4a, 8a
if a < 0, which of the four numbers above is the greatest?
a. a
b. 2a
c. 4a
d. 8a
e. it cannot be determined from the information given.

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin