Pollsters take a survey of people at a ball game to collect and analyze data about favorite leisure activities of Star City’s residents. Would this study be biased? Why or why not? No, it is not biased. The sample of people at the ball park is representative of Star City’s residents.
No, it is not biased. All people at the ball park will respond to the survey.
Yes, it is biased. Not all people at the ball park will respond to the survey.
Yes, it is biased. The sample of people at the ball park is not representative of Star City’s residents.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: