1. scott works as a delivery person for a shipping company. the graph shows a linear model for his delivery times on different days (b) based on the linear model, predict how long it initially took scott to deliver his packages (y-intercept). approximately how much did his delivery time decrease per day (slope)? the points on the graph are (3,21) and (6,12)

 Scott to deliver his packages = 30 times and -3 is his delivery time decrease per day.

Explanation: Since the line passes from the two points (3,21) and (6,12)-

as we know that the equation of a line passes through two points and is   ×

Thus equation of the line is ×(x-3)

= y-21=-3(x-3)

=y-21= -3 x+9

3 x +y=30, Which is the expression of Scott's delivery times on different days.

since according the graph- y-intercept= 30, which is the times in which Scott delivering his product initially.

Now, we have to find out Scott's delivery time decrease per day, for this slope of line 3x+y=30  is, m =

m= =-3

so required answer is,  slope=-3

14minutes

Step-by-step explanation:

first you need to find the distance which you must find the perimeter P=100+80+100+80

=360 so you multiple it by 6 to get

=2160meters

so you need to convert the meters to kilometers

which is 1000m =1km

what about 2160m you cross multiply

to get 2.16km.

so the distance represent D=2.16 km

and speed represent S=9km

now you need to find time represented by T

T=D/S

T=2.16km/9km/h

so the km cancels each other

you get 0.24h for this isn't the solution

you know that 1 hour= 60 minutes

what about 0.24h you cross multiply

to get 14.4 so you round it off to get 14 minutes