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

goog may be able to you find that answer

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!