Y=-6 would be one equation
For the first one it’s h=6 and the second one is h=-3
I'm guessing 3 feet. Hope it helps?
I think the correct answer from the choices listed above is option D. The equation that would satisfy all of the points plotted above would be y=-2x. From the plot, we can see that the y-intercept is equal to zero and by using two points we can calculate the slope to be equal to -2. Giving an equation which is y=-2x.