<p>*If f(x) = x^4 - 3x^3 - 9x^2 + 4, for how many
real numbers of k does f(k) = 2 ?
(A) None (B) One (C) Two (D) Three (E) Four</p>
<p>time (t) : 0------ 1 ------- 2 -------- 5
value v(t): 15000 --13000 --10900 -- 3000</p>
<p>*When purchased, an automobile is valued at
$15,000. Its value depreciates at the rate
shown in the table above. Based on a least squares
linear regression, what is the value,
to the nearest hundred dollars, of the
automobile when t=4 ?
(A) $5,400 (B) $5,500 (C) $5,600 (D) $6,400 (E) $7,000</p>
<p>i would really appreciate your feedback
thanks</p>