Wirtz Algebra II Chapter 1 Lesson 7

Term Definition
absolute value the distance from the number to zero on the number line.
absolute value equation An equation that contains an absolute value and may have more than one solution.
absolute value inequality Linear inequalities that contain absolute value and may have infinite solutions. The solutions are represented by segments or rays on the number line.
compound inequality A
sentence with two inequality statements joined either by the word “or” or by the word “and.” “And” indicates that both statements of the compound sentence are true at the same time.

Wirtz Algebra II Chapter 1 Lesson 8

Term Definition
relation any correspondence between a set of input values and output values
domain set of all inputs
function a special type of relation in which for every member of its domain is associated with exactly one member of its range
inverse operation "Undoing" steps to return to an original value or position.
functional notation when a function is written with f(x)
identity function when the function 'f' assigns every value of 'x' to itself.
inverse function the function the "undoes" the original function
composition of functions Applying one function to the answer of another function
piecewise functions functions which are defined with different functional relationships between the independent and dependent variables over different domains.
range set of all outputs

Wirtz Math Finance Chapter 4 Lesson 4

Term Definition
credit card (p193) A type of credit card account that has a revolving charge where the entire bill does not have to be paid in full each month.
impulse buying (p193) When a consumer purchases something to which they suddenly were attracted and had no intention of buying.
revolving charge account (p193) A type of credit card where the entire bill does not have to be paid in full each month; there is a minimum monthly payment and finance charge the month following any month in which the bill is not paid in full.
charge card (p194) A special type of credit card where the monthly bill for all purchases must be paid in full and there is no interest charged.
Truth-in-Lending Act (p194) A law that offers protection if a credit card is lost or stolen; if a consumer contacts the credit card company immediately after losing a credit card or the card is stolen, the maximum liability is $50.
Fair Credit Reporting Act (p194) The law that gives protection to a consumer in the case of errors on a monthly credit card statement; consumers are not responsible for a disputed amount or the finance charges that amount accrues until the error is resolved.
Fair Debt Collection Practices Act (p194) The law that prohibits the creditor from harassing or using unfair means t collect the amount owed.
debit card (p194) A card that acts like an electronic check and is not a credit or charge card; with each purchase, the amount is deducted from a checking account; purchases may not exceed the balance in the account.
Electronic Funds Transfer Act (p194) The law that protects debit card users agains unauthorized use of their cards; users are not responsible for purchases made with a lost or stolen card after the card is reported missing.
average daily balance (p195, 206) The average amount owed per day during a billing cycle.
mean (p196, 225) Often referred to as average; the sum of all the numbers in a data set divided by the number of elements in the data set.

Wirtz Math Finance Chapter 5 Lesson 4

Term Definition
liable (p238) responsible for damages caused
negligent(p238) At fault for damages caused
automobile insurance (p238) a contract between a driver and an insurance company, where the driver agrees to pay a fee (called a premium) and the company agrees to cover certain accident-related costs when the driver makes a claim (request).
premium (p238) the amount paid for an insurance policy
claim (p238) A request for payment by a driver involved in an accident to an insurance company that provides automobile insurance for the driver.
liability insurance (p238) A type of insurance that covers a person from damages; most states set minimum liability requirements.
bodily injury liability (BI) (p238) Covers bodily injury if a driver is at fault in an accident.
property damage liability (PD) (p238) Insurance coverage that pays for damage a driver causes to another person's property.
uninsured/underinsured motorist protection (UMP) (p238) Coverage that pays for injuries to a driver or passengers caused by a driver who has no insurance or does not heave enough insurance to cover the medical losses.
personal injury protection (PIP) (p239) An added type of insurance coverage mandatory in some states, that pays for any physical injuries that the driver or the passengers sustain while in the vehicle, even if there is no traffic accident.
no-fault insurance (p239) An added type of insurance coverage mandatory in some states, that pays for any physical injuries that the driver or the passengers sustain while in the vehicle, even if there is no traffic accident.
comprehensive insurance (p239) A type of insurance that covers the repair or replacement of parts of an insured car damaged by vandalism, fire, flood, wind, earthquakes, missiles, falling objects, riots, tree sprays, and other disasters; it also covers if the car is stolen.
collision insurance (p239) A type of insurance that pays for the repair or replacement of an insured car if it is damaged in a collision with another vehicle or object, or it it overturns, no matter who is at fault.
car-rental insurance (p239) A type of insurance that pays for part of the cost of a rented car if a car is disabled because of a collision or comprehensive-coverage repair.
emergency road service insurance (p239) A type of insurance coverage that pays for towing or road service when a car is disabled
actuary (p239) A statistician who predicts how many customers will submit claims based on criteria such as age, sex, marital status, driving record, and residence.
surcharge (p239) An extra fee paid to an automobile insurance company for dividing an annual premium into monthly, quarterly, or semiannual payments.
deductible (p240) Part of the repair or damages that a driver has to pay before the insurance company pays.

Wirtz Algebra II Chapter 1 Lesson 6

Term Definition
point-slope form (y – y1) = m(x – x1)
two-point form (y2 – y1)/(x2 – x1) = (y – y1)/(x – x1)
parallel lines Lines that have equal slopes
perpendicular lines Lines that have slopes that are negative reciprocals.

Wirtz Math Finance Chapter 5 Lesson 5

Term Definition
depreciate (p245) Decrease in value over time.
appreciate (p245) Increase in value over time.
straight line depreciation (p245) a line that show a constant decline in the value of something, something, such as a care that loses the same value each year.
slope (p245) The slope of a line is the numerical value for the inclination or declination of that line and is expressed as a ratio of the change in the vertical variable over the change in the horizontal variable from one point on the line to the next.
straight line depreciation equation (p246) The general form for the equation of a straight line is y = mx + b, where m represents the slope of the line and b represents the y-intercept.

Word Difinitions to help you write expressions and equations

Term Definition
plus add
sum add
more than add
increased by add
in all add
minus subtract
difference subtract
less than subtract
less subtract
decreased by subtract
times multiply
product multiply
multiplied multiply
twice multiply
tripled multiply
each multiply
of multiply
divided divide
quotient divide
per divide
separate divide
is equals
equals equals

Wirtz Combined Geometry Chapter 1 Lesson 2

Term Definition
Point (p5) An undefined term – no size, indicates location, and usually represented by a dot.
Line (p5) An undefined term – extends two directions infinetely and has no thickness
Plane (p5) An undefined term – A flat surface that is infinitely large and with zero thickness
Space (p6) The set of all points.
Collinear points (p6) Points all in one line.
Coplanar points (p6) Points all in one plane.
Intersection (p6) The set of points that are in both figures.
Horizontal planes (p9) Planes which run left-to-right.
Vertical planes (p9) Planes which run up and down.
Undefined terms (p5) Point, line, and plane are accepted as intuitive ideas and are not defined.

Wirtz Math Finance Chapter 5 Lesson 8

Term Definition
reaction time (p268) The time that the average, alert driver takes to switch from the gas pedal to the brake pedal; usually from approximately .75 second to 1.5 seconds.
thinking time (p268) The time that the average, alert driver takes to switch from the gas pedal to the brake pedal; usually from approximately .75 second to 1.5 seconds.
reaction distance (p268) The distance a car travels during a reaction or thinking time.
braking distance (p268) The distance a car travels while braking to a complete stop.
total stopping distance (p270) The sum of the reaction distance and the braking distance.