Calculate Neptune's mass given the acceleration due to gravity at the north pole is 11.529 m/s2 and the radius of Neptune at the pole is 24,340 km.

The mass of Neptune is kilograms.

Explanation:

From Newton's Law of Gravitation, the gravitational acceleration of Neptune is determined by the following formula:

(1)

Where:

- Gravitational constant, measured in cubic meters per kilogram-square second.

- Mass of the planet, measured in kilograms.

- Radius of the planet, measured in meters.

- Gravitational acceleration, measured in meters per square second.

If we know that , and , then the mass of Neptune is:

The mass of Neptune is kilograms.

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because it says use -2,0,and 2 for x, we can plug those numbers into the equation. y/4=3/4(-2)+2   y/4= -1 1/2 +2 now to get x by itself, we can multiply each side by 4. y=-6+8 which equals y=2 when x=-2. now you can do the same thing with 0 and 2 as x. you get y=8 when x=0 and y=14 when x=2.

x   |   y

-2 |   2

0   |   8

2   |   14