Elena goes for a long walk. This graph shows her time and distance traveled throughout the walk. YA
10
9
8
7
6
distance (miles)
1
11
2
4
x
time (hours)
What was her fastest speed, in miles per hour?

her fastest speed is at the one hour because she is going at 3 miles a hour.

Step-by-step explanation:

1:3= 3 miles per hour

2:5= 2.5 miles per hour

3:7= 2.3 miles per hour

4:9= 2.25 miles per hour

so the greatest number of miles per hour is in hour one with 3 miles per hour.

happy to help :)

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3