Derive the equation of the parabola with a focus at (0, 1) and a directrix of y = −1

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

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In which form is the following function written? y = - 2(x – 3)(x + 5)