Use the graph to answer the questions.
At what elevation did Julio begin?
At what elevation did Kathy begin?
Elevation (miles)
Who made it to 8 miles first?
Who experienced a greater elevation change?
The hours)

Step-by-step explanation:

The elevation at which each started is where their respective graphs go through the y axis.  Julio's graph goes through the y axis at 4 miles and Kathy's goes through at 0 miles, or in other words, on the ground.

As far as who made it to 8 miles first.  Locate the 8 on the y-axis and go straight across, following that horizontal line y = 8.  The first graph you run into on that horizontal line is Kathy's.  Where her graph meets y = 8, drop straight down to the x-axis and see that she hit 8 miles at a little over 16 hours.  Julio hit 8 miles at 18 hours.  

As far as who experienced a greater elevation change...that was Kathy.  She started at ground level and climbed to 9 miles, while Julio started at 4 miles and climbed to 9 miles.

0.6

39mph

step-by-step explanation:

g(x) = 3*(8(3^(x−2))+2)

g(x) = 24 (3^(x-2) )+6

the factor is 2

step-by-step explanation:

let f(x)=8(3^(x−2)+2)

to stretch a graph by 3, it would be 3f(x)

g(x) =3f(x)

g(x) = 3*(8(3^(x−2))+2)

g(x) = 24 (3^(x-2) )+6

x     −2     0     2     4     6

f(x) 1/64 1/16   1/4     1     4

1/64 * z * z = 1/16

i multiplies by z twice because it its 2 steps from -2 to 0

1/64 z^2 = 1/16

multiply by 64 to clear the fraction on the left side

1/4 * 64 z^2 =1/16 *64

z^2 = 4

take the square root of each side

sqrt(z^2) = ±sqrt(4)

z = ±2  

we are multiplying by 2 each time.