A band is planning a concert at a local theater. The graph below shows the ticket sales per hour. What is the slope of the line shown in the graph?

A.
-400
B.
-250
C.
-2,000
D.
-1,500

the slope is -400

Step-by-step explanation:

In order to find the slope, we must use the slope equation

m=

where it was considerated 2 points of the line, i.e.,

(x_1,y_1) and (x_2,y_2)

In this case, we observe that there are 2 "easy" points,

(x_1,y_1)=(0,4000) and

(x_2, y_2)=(10,0)

By substituying these point in the slope equation, one has

m=

m=

Hence, m=-400.

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =