Answer:
Option B: y = -2x + 17.
Step-by-step explanation:
Lets calculate values for option B:
x = 2 , y = -4+17 = 13 Β ( B gives the value 12)
x = 4, y = -8+17 = 9 Β (10)
x = 5, y = -10+17 = 7 Β (6)
x = 6, y = -12+17 = 5 (6)
x = 8, y = -16+17 =- 1 Β (1)
Sum of the differences = Β 1 + 1 + 1 + 1 = 4.
These values are close to the ones given in the question.
Option A Β y = 6, 10, 12, 14, 18 - Β some of the values of y are Β a lot different than the given values.
Option C:
Working them out we get y = Β 14, 10, 8, 6, 2. which are not quite as good as Option B values The total difference is 5 compared with 4 for option B.
Option D.
y = Β 12.4, Β 9.8, 8.5, 7.2, 4.6 where some of Β the differences are large.
