Answer:
A. 
Step-by-step explanation:
The options are:

For this exercise it is important to remember that, by definition, the Exponential parent functions have the form shown below:

Where "a" is the base.
There are several transformations for a function f(x), some of those transformations are shown below:
1. If
and
, then the function is stretched vertically by a factor of "b".
2. If
and
, then the function is compressed vertically by a factor of "b"
Therefore, based on the information given above, you can identify that the function that represents a vertical stretch of an Exponential function, is the one given in the Option A. This is:

Where the factor is:

And 
I actually got zero for this when I did this in phothomath
y = 3x + 1
It's a linear function. The domain of linear function is the set of all real numbers.

Answer:
x=1.75
Step-by-step explanation:
14/3.5=4-2.25=1.75.
Answer: 14
Step-by-step explanation:
28 times 0.5. First do 28 times 5. Then do 28 times 0. When multiplying with zeros, any number times zero, is zero. Your answer is 14.