Asked by rae
A spring with a 2-pound weight suspended is 9 inches in length. With a 5-pound weight suspended, the length increases to 13.5 inches.
Which equation does not represent the behavior of the spring?
y – 2 = 1.5(x – 9)
y – 9 = 1.5(x – 2)
y = 1.5x + 6
y – 13.5 = 1.5(x – 5)
Which equation does not represent the behavior of the spring?
y – 2 = 1.5(x – 9)
y – 9 = 1.5(x – 2)
y = 1.5x + 6
y – 13.5 = 1.5(x – 5)
Answers
Answered by
Reiny
I looked it up and according to Hook's Law, the relation is linear.
so you have two points (2,9) and (5,13.5)
slope = (13.5-9)/(5-2)
= 1.5
Using (2,9) my equation would be
y-9 = 1.5(x-2)
Using (5,13.5) would produce
y-13.5 = 1.5(x-5)
clearly the second one is wrong
so you have two points (2,9) and (5,13.5)
slope = (13.5-9)/(5-2)
= 1.5
Using (2,9) my equation would be
y-9 = 1.5(x-2)
Using (5,13.5) would produce
y-13.5 = 1.5(x-5)
clearly the second one is wrong
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