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Chapter 1 Clark
Chapter 1 flash cards
Question | Answer |
---|---|
Vertical Line Test for Functions | No vertical line intersects the graph at more then one point |
What is a variable? | A symbol that can be replaced by any one of a set of numbers or other objects |
What is an algebraic expression? | A combining of numbers, variables, and operations in a way that stands for a number. |
What is required in an algebraic sentence? | An algebraic expression that is related with with an equality or an inequality. |
Opposite of a Sum Theorem | For all real numbers a and b -(a+b)= -a+-b |
Slope Theorem | The graph of the direct-variation function y-kx has constant slope k. |
Dependent Variable | A variable whose value always depends on the value(s) of the other variable(s).Deals with Range and output. |
Independent Variable | A variable whose value determines the other variable(s) value(s). Deals with Domain and input. |
Natural/ Counting Numbers | 1,2,3,4,.... |
Whole Numbers | 0,1,2,3,4,... |
Integers | .....-3,-2,-1,0,1,2,3,... |
Rational Numbers | 0,1,-7, 2/3, .004, 6 7/9, |
Real Numbers | 0, 1, -7, pi, anything that can be represented by decimals |
What does "y" also equal? | f(x) (F of x) This form is call f(x) notation |
What is any set of ordered pairs called? | A relation |
What is a function? | Any relation in which no two different ordered pairs have the same first coordinate. |
Theorem (Vertical-Line Test for Functions) | No vertical line intersects the graph a function in more then one point. |
Recursive Formula | Formula where the first term is given and gives a rule on how to find the nth term. |