Graph 3- Friend Meet-Up

Place Image Here

X axis: time in seconds

Y axis: depth in Feet

Dolphin (green line): y=-2x

Slope: -2 feet per second

Y-int: (0,0)

Friend (purple line): y=4x-6

Slope: 4 feet per second

Y-int: (0,-6)

Intersection: (1, -2)

(1,-2) After 1 second of swimming, the two Dolphins meet at 2 feet below sea level

The dolphin is swimming downward from sea level when he meets his friend 2 feet below sea level.

Slope change: if dolphin swam fast he would meet his friend faster, making his graph steeper.