The equation of the line is y = (1/2)x + 2
Answer:
Step-by-step explanation:
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Your friend's distance from her starting point to your position is decreasing until she passes by you. This distance is D(t) = 100 ft - (20 ft / sec)t. We'll assume that your friend doesn't actually pass by you; she just gets closer and closer, from her initial 100 ft distance from you. Then:
D(t) = 40 ft = 100 ft - (20 ft / sec)t. Simplifying, we get:
-60 ft = -(20 ft / sec)t, and thus t = 3 sec.
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Answer:
-14.2, -7.8, 12.6, 15.3
Step-by-step explanation: