The vertex of this parabola is at (2, -1). When the y-value is 0,
the x-value is 5. What is the coefficient of the squared term in
the parabola's equation?
2.-12
O A. 4
O B. -4
O c. -3

answer:  

\boxed {\frac{1}{5}}  

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solution-

60 *   \frac{1}{5}   = 12

90 * \frac{1}{5} = 18

75 * \frac{1}{5} = 15

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hence, the answer would be \boxed {\frac{1}{5}}