Independent and Dependent Variables
The number of items sold at your garage sale and the amount of money made during the garage sale.
What is the dependent variable?
Amount of money made
x - 5 1/3 = 8 and 2/5
3 1/15
7.25x + 16 = 37.75
x = 3
(3, 10) (4, 13) (5, 16)
3x + 1 = y
What part of the equation describes the rise over the run?
coefficient
The length of time you spent studying for your quiz and the score you earned.
What is the independent variable?
length of time spent studying for quiz
2.89x = 20.808
x = 7.2
2/3x + 22 = 76
x = 81
(4, 0) (6, 1) (8, 2)
1/2x - 2 = y
What part of the equation describes where the line crosses the y-axis?
the constant
The amount of money saved over the course of one month and the average amount of money saved each week during that one month.
What is the independent variable?
The average amount of money saved each week
3x + 8x = 209
x = 19
9x + 2 and 1/4 = 4 and 1/3
x = 25 / 108
(1, 9) (2, 13) (3, 17)
4x + 5 = y
Which type variable is usually represented by the variable y?
Dependent Variable?