You shoot an arrow set a target. the parabolic path of the arrow passes through the points shown in table.

x. y
30. 6
60. 7
100. 4
a. find a quadratic function in standard form that models the path of the arrow. then graph the function. use quadratic regression for this step. the three points satisfy a quadratic function of form y= ax^2 +box +c

900a+30b+c=6(1)

3600a+60b+c=7...(2)

10000a+100b+c=4(3)

(2)-(1)

2700a+30b=1(4)

(3)-(1)

9100a+70b=-2...(5)

 solving (4) and (5) then putting a, b into (1)

a=-13/8400, b=29/168, c=31/14

The graph is like a parabola with upward dome, it's head at upside and two legs downwards.

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

unless if u could do my questions, if not i wouldn't want to