1. Explain the meaning of the phrase "rate of work."​

The rate of doing work is called power. It is defined as the rate at which energy is consumed and this rate is equal to one joule per second.

step-by-step explanation:

for the free

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.