Math Snap

STEP 1

What is this asking?
We need to figure out which number categories -4 belongs to.
Watch out!
Don't mix up integers and whole numbers!

STEP 2

1. Check if -4 is a whole number.
2. Check if -4 is irrational.
3. Check if -4 is real.
4. Check if -4 is an integer.

STEP 3

Whole numbers are like counting numbers starting from zero: 0, 1, 2, 3, and so on.
Since $-4$ is negative, it's not a whole number.

STEP 4

Irrational numbers can't be written as a fraction of two integers.
Think of numbers like $\pi$ or $\sqrt{2}$.
Since we can write $-4$ as $\frac{-4}{1}$, it's not irrational!

STEP 5

Real numbers are pretty much any number you can think of that's not imaginary (like $\sqrt{-1}$).
Since $-4$ doesn't involve imaginary numbers, it is a real number!

STEP 6

Integers are like whole numbers, but they also include negative numbers.
So, $-4$, $-3$, $-2$, $-1$, $0$, $1$, $2$, and so on, are all integers.
Since $-4$ fits right in there, it is an integer!

$-4$ is a real number and an integer.