Frank wants to know the favorite sport of his classmates. Which survey method would most likely provide him unbiased results.

ask everyone individually, and then record the information as a tally, then transfer the information to a bar graph.

Step-by-step explanation:

if you ask everyone individually, then you are less likely to have people saying the same things as their friends, and if you tally it up, it would be easier to transfer your information to a graph. A bar graph would be ideal for this type of situation because it shows multiple options, and lets you input how many people chose each option.

,kjhgfd

step-by-step explanation:

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