Given the system of linear equations.
-x + y = 5, 4x + y = 10

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air