Variable
Label the independent and dependent variable:
The number of hours, h, spent studying and the score, s, on a test.
Independent: hours, h
Dependent: score, s
Write a rule and equation:
x: 3, 6, 11, 13
y: 5, 8, 13, 15
The value of y is 2 more than the value of x. y = x + 2 OR x = y - 2
Explain how to get the variable alone, and then solve.
r - 37 = 83
Add 37 to both sides. r = 120
Label the independent and dependent variable:
Tickets, t, sold for a race and the amount of money, m, collected.
Independent: Tickets, t
Dependent: Money, m
Write the rule and equation:
x: 4, 12, 20, 36, 40
y: 1, 3, 5, 9, 10
x is divided by 4. y = x/4
3.2 + 5.71 = ?
8.91
Label the independent and dependent variable:
The height, h, of a fence and the time, t, it takes to climb the fence.
Independent: height, h
Dependent: time, t
Write an equation that describes the table.
x: 5, 6, 7, 10, 11, 12
y: 2.5, 3, 3.5, 5, 5.5, 6
y = x/2
4 + 5(32) - 1 = ?
48