Find the probability of spinning a number greater than 1 and flipping tails

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?