The scatter plot and line of best fit below show the length of 12 people's femur (the long leg bone in the thigh) and their height in centimeters. Based on the line of best
fit, what would be the predicted femur length for someone with a height of 174 cm?
192
186
180
174
168
162
Height (centimeters)
156
O
150
o
o
(40,150)
144
8
oo
O
O
(35,138)
O
126
(30,126)
30 31 32 33 34 35 36 37 35
Femur Length (centimeters)
40

Step-by-step explanation:

Expressions of the form (a +b)(a +b) will result in a perfect square trinomial, because both binomial factors are identical.

Expressions of the form (a +b)(a -b) will result in a difference of squares.

Match the offered choices to either one of these forms, and they will be included in the answer set.

  (5x + 3)(5x - 3) -- difference of squares

  (7x + 4)(7x + 4) -- perfect square

  (2x + 1)(x + 2) -- nothing special

  (4x-6)(x + 8) -- nothing special

  (x - 9)(x - 9) -- perfect square

  (-3x-6)(-3x+6) -- difference of squares