Explain to me how you get the answer. a formula would be nice if there is one.

A vertical stretch by a factor of 3 and a shift up 2 units.

Step-by-step explanation:

To understand transformations of any function we have to learn what each number is doing to our base function. Constants that are added to the output of our base function shifts our function upwards and downwards. Numbers that are multiplied to the outputs of our base function stretch or shrink our functions vertically.

I would suggest watching multiple videos on transformations of graphs to get a better general understanding. If you would want a formula you would have to plot the points of the first function with any inputs and then plot the points of the same inputs with the new function.

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.