Antti entered a -kilometer race. His goal is to finish in one hour. He starts off sprinting, and completes the first kilometers of the race at an average speed of kilometers per hour.
To achieve his goal of a one-hour finish time, what average speed (in kilometers per hour) must Antti maintain for the last kilometers of the race?
Enter your answer as a number in decimal form, without units.Hint(s):
Answer:
(±1, -2)
Step-by-step explanation:
The co-vertices are the end points of the minor axis. The center is at (0, -2) and the minor axis is 2 units long, so the co-vertices are ...
(-1, -2) and (1, -2)
<h3>
Answer: Second graph</h3>
Why? Because we draw a dashed line through x = -1/2 = -0.5 on the horizontal number line (aka x axis). Then we shade to the right of this dashed line. The shaded region represents all points that make the inequality true. For example, the point (0,0) is in the shaded region. It has an x coordinate of x = 0 which is larger than -1/2
Side note: the dashed line says "points on this boundary do not count as solutions". So any point with an x coordinate of -1/2 does not count.
