What is the equation of a line when the slope is -1/2 and the y-intercept is 0.
1 answer:
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Answer:
Accelerating to top speed, deaccelerating to finish line.
Step-by-step explanation:
If the runner kept a constant speed of 11 mph for the whole duration of his run (32 minutes), the distance he would have covered is:
This means that, in order to run the full 6.2 miles, the runner needs to reach a speed over 11 mph. Assume he starts from rest, while accelerating the runner reaches, and the surpasses, the 11 mph mark. Since his speed at the finish line is zero, the runner has to deaccelerate from his current running speed (which should be higher than 11 mph), passing through 11 mph and reaching zero at the finish line.
You are given the system of equations
If you want simply to know whether (1,1) is a solution of this system, then substitute x=1 and y=1 into both equations:
This means that (1,1) is a solution, because both iqualities hold.