What is the slope of the line that passes through the points -(9, -5) and (-1, -9)?

-1/2

Step-by-step explanation:

I''m guessing the first coordinate is supposed to be (-9,-5) instead of -(9,-5).

Slope is calculated by

I'll use (-9,-5) as the first coordinate and (-1,-9) as the second.

Fill in the numbers and you get:

Simplify the double negatives:

Simplify again:

Simplify one last time (divide both sides by 4): (aka )

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

what i would say the best answer is a. 40.5