Are the following examples above zero, below zero, or at zero? 12,450 feet in elevation? Sea level A miner drilled -25 into the ground

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

The graph shown is the graph of which function?

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)