How many drivers who start driving before they are 20 are convicted of a traffic violation within the first year of driving?
1 answer:
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Answer:
Step-by-step explanation:
parabola equation with vertex (0 , 0) and focus length |f| = 7
4*f*(x - h) = (y - k)²
4*7*(x-0)=(y-0)²
28x = y²
