<PRE><B>Question 954545</B>
The answer is D) y = 20x


When x = 2 seconds, y = 20x = 20*2 = 40 feet
When x = 3 seconds, y = 20x = 20*3 = 60 feet
When x = 4 seconds, y = 20x = 20*4 = 80 feet


Notice how I plugged each x value in and got the corresponding y value out to confirm the answer.

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