Question

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

Answer 1

i know its c

Explanation:

i had this question yesterday

Answer 2

the slope is -400

Explanation:

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

m=
`(y_2-y_1)/(x_2-x_1)`

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=
`(0-4000)/(10-0)`

m=
`(-4000)/(-10)`

Hence, m=-400.