Algebra 1 Lesson 2 Flashcards

Questions and Answers

What is a commission?

The total cost of an item

A discount applied to a product

An equation in mathematics

A fee paid for services, usually a percentage of the total cost (correct)

What is a contradiction in mathematics?

A statement that goes against an assumption.

What is a conversion factor?

A numerical factor used to multiply or divide a quantity when converting from one system of units to another.

What are corresponding angles?

Angles created where a transversal crosses other (usually parallel) lines. Signup and view all the answers

What are corresponding sides?

Sides that maintain the same relative position in two figures. Signup and view all the answers

What are cross products?

Two equal products obtained by multiplying the second term of each ratio by the first term of the other ratio in a proportion. Signup and view all the answers

What is a discount?

A percentage subtracted from a number. Signup and view all the answers

If a $30 item has a 20% discount, how much would you have to pay for it?

$24 Signup and view all the answers

What is an equation?

A mathematical statement that two things are equal. Signup and view all the answers

What is a formula?

Numbers and symbols that show how to work something out. Signup and view all the answers

What is an identity?

An equality relation A = B that holds true for all values substituted for the variables. Signup and view all the answers

What is indirect measurement?

A technique that uses proportions to find a measurement when direct measurement is not possible. Signup and view all the answers

What is interest?

The amount of money paid for a loan or an investment. Signup and view all the answers

What is a literal equation?

An equation where known quantities are expressed partially or wholly by means of letters. Signup and view all the answers

What is markup?

The amount added to the cost price of goods to cover overhead and profit. Signup and view all the answers

What does percent mean?

Parts per 100. Signup and view all the answers

What is percent change?

The extent to which something gains or loses value. Signup and view all the answers

What is percent decrease?

A measure of the extent to which something loses value. Signup and view all the answers

What is percent increase?

A measure of the extent to which something gains value. Signup and view all the answers

Study Notes

Key Terms in Algebra 1

Commission: A fee for services, typically calculated as a percentage of the total cost.
Contradiction: In mathematics, a statement that opposes an assumption, such as assuming a variable is negative and subsequently stating it equals a positive product.
Conversion Factor: A numerical multiplier or divisor used for changing quantities from one unit system to another.
Corresponding Angles: Angles located at the same position in two different intersections created by a transversal crossing parallel lines.
Corresponding Sides: Sides in two figures that occupy the same relative position.
Cross Products: Equal products achieved by multiplying opposite terms in a proportion, demonstrating equality of two ratios.
Discount: A percentage deducted from a price; for example, a 10% discount on a $30 item results in a $3 reduction.
Equation: A mathematical expression stating that two quantities are equal, represented on either side of an equals sign.
Formula: A mathematical expression using symbols to describe the relationship between variables; for instance, the volume of a box is calculated as V = h × w × l.
Identity: An equality that holds true regardless of the values substituted in; examples include algebraic identities like (x + y)² = x² + 2xy + y².
Indirect Measurement: A method to determine a value using proportions when direct measurement is unfeasible.
Interest: The cost associated with a loan or investment, representing the price paid for borrowed money.
Literal Equation: An equation that expresses known quantities using letters, as opposed to numerical equations.
Markup: The process of determining the increase in value or price, refocusing on the absolute change and its percentage related to the original amount.
Percent: Refers to parts per hundred, often used to express ratios or comparisons.
Percent Change: A measure of how much a quantity increases or decreases in relation to its previous value.
Percent Decrease: A specific measure of how much a quantity loses in value, expressed as a percentage.
Percent Increase: A specific measure of how much a value gains relative to its original amount, also expressed as a percentage.

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Description

Test your knowledge with flashcards from Algebra 1 Lesson 2. This quiz covers key terms such as commission, contradiction, and conversion factors, essential concepts for mastering algebra. Perfect for students looking to reinforce their understanding of these foundational ideas.