23 terms

Cartesian Coordinate System

a coordinate system for which the coordinates of a point are its distances from a set perpendicular lines that intersect at the origin of the system

x-coordinate

The value on the x-axis used to locate a point on the coordinate graph. It is the first value in an ordered pair.

y-coordinate

The value on the y-axis used to locate a point on the coordinate graph. It is the second value in an ordered pair.

graph of the equation

the line consisting of all points whose coordinates satisfy the equation

linear equation in general form

a x + b y = c,

where a, b and c are constants.

where a, b and c are constants.

standard form

y=mx+b

intercepts

The point which a relation intersects the x- or y-axis

Inequality Property 1

Suppose that a<b and that c is any number. Then a+c<b+c and a-c<b-c. In other words, the same number can be added or subtracted from both sides of the inequality.

Inequality Property 2

2A. If a<b and c is positive, then ac<bc.

2B. If a<b and c is negative, then ac>bc.

2B. If a<b and c is negative, then ac>bc.

Linear inequalities

Ax+By≤C, Ax+By≥C and A and B are not both 0

feasible set

the graph of a system of inequalities

point of intersection

can be found by

mx+b=y=mx+b

mx+b=y=mx+b

supply curve

a curve that shows the relationship between the price of a product and the quantity of the product supplied.

demand curve

a curve that shows the relationship between the price of a product and the quantity of the product demanded

slope

rise over run

(y2-y1)/(x2-x1)

(y2-y1)/(x2-x1)

straight Line depreciation

One method of calculating the depreciation is to take equal amounts over the expected lifetime of the asset.

fixed cost

y intercept

marginal cost of production

the slope

Point- Slope formula

The equation of the straight line passing through (x1,Y1) and having slope m is given by y-y1=m(x-x1)

Perpendicular Property

When two lines are perpendicular, their slopes are negative reciprocals of one another. That is, if two lines with slopes m and n are perpendicular to one another, then m=-1/n.

Conversely, if two lines have slopes that are negative reciprocals of one another, they are perpendicular.

Conversely, if two lines have slopes that are negative reciprocals of one another, they are perpendicular.

Parallel Property

Lines with the same slope.

annual deduction

yearly depreciation

Salvage Value

What an item's value is after it has surpassed it's expected life span