Which statement describes the graph of the system of equations? [x-y-1
Ly-x=1
O The lines are parallel. W
O The lines are coinciding.
O The lines intersect at (1,0).
O The lines intersect at (-1,0).

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Which one is true about the hexagons ?