In the table below, x represents the miles traveled and y represents the cost to travel by train.

miles, x
cost, y
2
8.50
5
15.25
8
22.00
12
31.00

what is the slope of this function?

0.44
0.63
2.25
22.50

2.25

Step-by-step explanation:

The data is given on miles travelled and the cost at 4 different points.

The given data is,

Point         Miles travelled                  Cost

                 (x co-ordinate)                (y  co-ordinate)

A                 2 (x1)                                      8.5(y1)

B                  5 (x2)                                 15.25(y2)

C                 8   (x3)                                     22(y3)

D                 12   (x4)                                    31(y4)

Slope of AB =   = 2.25

Slope of BC =   = 2.25

Slope of CD =   = 2.25

So,

slope of the line  = 2.25

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold