Which is a valid prediction about the continuous function f(x)?
O f(x) 20 over the interval [5, oo).
Of(x) < 0 over the interval [-1, ..).
Of(x) > 0 over the interval (-00, 1).
Of(x) < 0 over the interval (-00.-1).

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33