AFQT flashcards
AFQT · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Percent change formula
- Percent change equals the amount of change divided by the original amount, then multiplied by 100. Use the original value as the denominator.
- Average total relationship
- Average equals total divided by count. Rearranged, total equals average multiplied by count, and count equals total divided by average.
- Work rate rule
- For one job, add individual work rates to get the combined rate. The time to finish together is 1 divided by that combined rate when rates are jobs per hour.
- Distance formula
- Distance equals rate multiplied by time. Rearrange to rate equals distance divided by time, or time equals distance divided by rate. Keep units consistent.
- Simple interest formula
- Simple interest equals principal multiplied by annual interest rate multiplied by time in years. Total amount equals principal plus interest.
- Discount sale price
- Sale price equals original price multiplied by one minus the discount rate. A 20 percent discount means paying 80 percent of the original price.
- Ratio total parts
- In a part-to-part ratio, add the ratio numbers to find total parts. Divide the total quantity by total parts, then multiply by each ratio number.
- Profit calculation
- Profit equals revenue minus cost. If revenue is less than cost, the result is a loss. Profit percent often compares profit to cost.
- Order of operations
- Evaluate parentheses first, then exponents, then multiplication and division from left to right, then addition and subtraction from left to right.
- Slope formula
- Slope equals the change in y divided by the change in x between two points. A horizontal line has slope zero; a vertical line has undefined slope.
- Slope-intercept form
- In y equals m x plus b, m is the slope and b is the y-intercept, the point where the line crosses the y-axis.
- Circle formulas
- Circumference equals 2 times pi times radius. Area equals pi times radius squared. Diameter equals twice the radius.
- Triangle area
- Area of a triangle equals one-half times base times height. The height must be perpendicular to the chosen base.
- Pythagorean theorem
- For a right triangle, a squared plus b squared equals c squared, where c is the hypotenuse opposite the right angle.
- Exponent product rule
- When multiplying powers with the same base, add the exponents. When raising a power to a power, multiply the exponents.
- Linear equation solving
- To isolate a variable, perform the same operation on both sides. Undo addition or subtraction first, then multiplication or division.
- Context contrast clue
- Words such as but, however, although, and unlike signal a contrast. The unknown word likely means the opposite of the nearby idea.
- Context example clue
- Phrases such as for example, including, and such as introduce examples. The examples help define an unfamiliar word by showing what it refers to.
- Prefix pre-
- The prefix pre- means before. It appears in words such as preview, predict, and prepare, which involve something happening or being done ahead of time.
- Root spect
- The root spect means look or see. It appears in inspect, spectator, and perspective, words connected with viewing or examining.
- Suffix -less
- The suffix -less means without. Adding it to a noun forms an adjective, as in hopeless meaning without hope.
- Affect versus effect
- Affect is usually a verb meaning to influence. Effect is usually a noun meaning a result. Remember: affect is an action; effect is an outcome.
- Connotation meaning
- Connotation is the feeling a word suggests beyond its dictionary meaning. Words can carry positive, negative, or neutral associations.
- Adverb function
- An adverb modifies a verb, adjective, or another adverb. It often answers how, when, where, or to what degree.
- Main idea
- The main idea is the central point of a passage. It combines the topic with what the author says about that topic.
- Supporting details
- Supporting details explain, illustrate, or prove the main idea. They often answer who, what, when, where, why, or how.
- Valid inference
- A valid inference is a logical conclusion based on evidence in the passage. It is not directly stated but must be supported by details.
- Author's purpose
- Author's purpose is the reason for writing, such as to inform, persuade, entertain, or explain. The overall message and tone help identify it.
- Tone in passage
- Tone is the author's attitude toward the subject. Word choice, imagery, and examples reveal whether the tone is serious, humorous, critical, or friendly.
- Sequence transition words
- Words such as first, next, then, and finally signal order. They help readers follow steps, events, or ideas in time order.
- Compare and contrast clue
- Words such as both, similarly, unlike, and however signal comparison or contrast. Comparison shows similarities; contrast shows differences.
- Fact versus opinion
- A fact can be verified with evidence. An opinion expresses a belief, judgment, or feeling and often includes evaluative words.