An exponential function is graphed for all real numbers. this includes which of the following sets of numbers?

integers
imaginary numbers
rational numbers
complex numbers
irrational numbers

Step-by-step explanation:

When we graph any function the graph will include all real numbers.

Here given that an exponential function is graphed for all real numbers.

Since real numbers include integers, rational numbers and irrational numbers, we see that the graph would include all the three mentioned.

Imaginary or complex numbers cannot be graphed in a real graph and hence are omitted

Hence answer is

integers

Rational numbers

Irrational numbers

9.

Step-by-step explanation:

We have been given that dimensions of original photo are 4 inches by 6 inches. We want the photo on the poster to be of dimensions 3 feet by 4 1/2 feet.            

First of all we will convert dimensions of poster from feet to inches.

Now let us compare sides of our original photo with corresponding sides of poster.

Now let us compare the second pair of corresponding sides.

We have seen that sides of poster are 9 times the sides of our original photo, therefore, the scale factor of this dilation is 9.