Question

assify each number belo

	integer?
	yes	no
$-22.84$	$\circ$	$\circ$
$-9$	$\circ$	$\circ$
$\dfrac{17}{20}$	$\circ$	$\circ$
$-\dfrac{40}{5}$	$\circ$	$\circ$
$22$	$\circ$	$\circ$

Explanation:

Step1: Recall integer definition

Integers are whole numbers (positive, negative, or zero) without fractional or decimal parts.

Step2: Analyze -22.84

-22.84 has a decimal part, so not an integer. Choose "No".

Step3: Analyze -9

-9 is a negative whole number, so it's an integer. Choose "Yes".

Step4: Analyze \(\frac{17}{20}\)

\(\frac{17}{20} = 0.85\), a fraction (decimal), not an integer. Choose "No".

Step5: Analyze \(-\frac{40}{5}\)

Simplify: \(-\frac{40}{5} = -8\), which is an integer. Choose "Yes".

Step6: Analyze 22

22 is a positive whole number, so it's an integer. Choose "Yes".

Answer:

• For \(-22.84\): No
• For \(-9\): Yes
• For \(\frac{17}{20}\): No
• For \(-\frac{40}{5}\): Yes
• For \(22\): Yes