Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
7 Cards in this Set
 Front
 Back
Methods to solve the two linear independent equations?

1. Multiplication: to multiply two equations by the same number
2. Substitution: to substitute one variable to another equation 

Interprete linear equation as a graph:
y = a + bx 
y  the dependent variable which varies with the x value
a  yintercept which will cut the y axis given x = 0 b  coefficient or slope which refer to how the y value changes when one unit of x changes x  independent variable which will change the yvalue 

How the linear equation apply to the costing?
y = a + bx 
In terms of cost:
y = total costs a = fixed costs which is positive although production units are zero b = the change in total costs when one unit of x change x = no. of units produced 

How to determine the slope of linear equation

slope = change in y / change in x (to determine how much y will change for one unit of x change)


What is the positive and negative slope mean?

Positive slope will go upward as x goes up, y will go up too
Negative slope will go downward as x goes up, y will go down. 

what is the slope for horizontal line?

As x change, y is constant; so slope =
(y2 y1) / (x2  x1) = 0 / 1 = 0 

what is the slope of vertical line?

as x is constant, y is changed; so
(y2 y1) / (x2  x1) = 1/0 = infinity or the steepest slope. 