Here. we are this the kind of math i can’t do *sigh*

(A) y = -2x + b

(B) y = 0.5x

(C) y = 2/3x - 28/3

(D) y = -2x - 11

Step-by-step explanation:

(A) 0 = 2 · -4 + b

b = 8

Equation: y = -2x + b

(B) 1/2 = 0.5

-1 = 0.5 · -2 + b

b = 0

Equation: y = 0.5x

(C) 2/3 stays the same

-6 = 2/3 · 3 + b

b = -28/3

Equation: y = 2/3x - 28/3

(D) -3 = -4 · -2 + b

b = -11

Equation: y = -2x - 11

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers