Example 4 Ris related to V by the formula R=
600
V
When V decreases from 50 to 40, the value of R:
(A)
(B)
(C)
(D)
Increases by 9
Decreases by 9
Increases by 81
Deceases by 3600

its a little blurry tbh

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.

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

85.3-64 = 21.3

so laura has already added 85.3 grams of chocolate powder and she has gone over the amount specified in the recipe by 21.3 grams

hope i ! have a great  day!