Inverse or direct variation
Definitions
How to
What's the equation
misc
100
y = 9/x
What is inverse variation?
100
Domain of the situation
What are the values of the independent variables?
100
If the graph includes (0,0) and it is linear. y/x = a constant.
What is 'how tell to tell if it is proportional'?
100
x 0 1 2 3 4 y 0 1.3 2.6 3.9 5.2
What is y = 1.3x?
100
x times y is a constant
What is inverse variation?
200
y=1.2x
What is direct variation?
200
Range if the situation.
What are the values of the dependent variable?
200
The graph includes infinite values like everything between 5 and 40 including 5.0001, 5.000001, etc.
What is 'how to tell if it is continuous'?
200
x 0 1 2 3 4 y 6 8.7 11.4 14.1 16.8
What is 2.7x+6?
200
A symbolic equation that describes a relationship between two variable.
What is a function rule?
300
x l 0 1 2 3 4 y l 0 3 6 9 12
What is direct variation?
300
A quantity that changes
What is a variable?
300
The graph only include select values, like 1,2,3,4,5,etc
What is 'how to tell if it is discrete'?
300
x 4 6 8 y 2.66 4 5.333
What is y=x/1.5?
300
60% of your final grade
What is tests?
400
x l 3 5 9 y l 9 15 27 What is function rule?
What is direct variation and what is y = 3x?
400
y - y1 = m(x- x2)
What is the point slope formula?
400
Enter the data into L1 and L2, hit STAT - CALC 4)linreg(ax+b)
What is 'how to find a linear equation'?
400
x 4 8 y 494.4 988.8
What is 123.6x
400
To do this, you must first complete the assignments for a chapter
What is retake the test?
500
x l 3 6 9 10 y l 3.67 1.83 1.22 1.1 What is function rule?
What is inverse and y = 11/x?
500
y = kx vs y = k/x
What is direct vs. inverse variation?
500
Enter data in L1 and L2, put L1XL2 into L3, find the mean of L3 (STAT - CALC - 1VarStat L3) and write y = mean/x
What is 'how to write an inverse variation equation'?
500
x 2 7 y 414.5 118.43
What is 829/x?
500
This Friday during Bridges class
What is the chapter 1 test?
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