The Substitute Teacher
Evaluate the expression:
5x + 4 for x = 5.
What is 29?
All real numbers are rational number.
What is False?
Independent variables is cans of soup: 1, 2, 3, 4
Dependent variables is number of servings: 4, 8, 12, 16
Define the variables and write the function rule.
Sample answer: What is
s = servings and
c = cans of soup and
the function rules is s = 4c?
The simplified value for:
4 + 8 -: 2 + 6 xx 2
What is 20?
What kind of real number is -1?
A. Rational
B. Integer
C. Both A and B
What is C?
Evaluate the expression:
2(2s - 3t) for s = 5.2 and t = 1.9.
What is 9.4?
The absolute value of a negative number is always positive.
What is TRUE?
Independent variables 1, 2, 3, 4
Dependent variables 7, 14, 21, 28
Define the variables and write the function rule.
Sample answer:
What is x = input and
y = output and
the function rules is y = 7x?
The simplified value for:
(4 + 7)(9 - 2)
What is 77?
What kind of real number is
1/3
What is Rational?
Evaluate the expression:
|m| + |2n|
for m = -11 and n = 8.
What is 27?
In a function rule, the independent variable is also known as the input.
What is TRUE?
Independent variables 1, 2, 3, 4
Dependent variables 6, 9, 12, 15
Define the variables and write the function rule.
Sample answer: What is
x = independent variable and
y = dependent variable and
the function rules is y = 3x + 3?
The simplified value for:
(3^2 + 4^2) -: 5
What is 5?
What kind of real number is
7/1239
What is Rational?
Evaluate the expression:
(2d - 3)/5
for d = 9.
What is 3?
The mean of a set of data is
"add the data" / "the first data number"
What is False?
Independent variables 1, 2, 3, 4
Dependent variables 20, 16, 12, 8
Define the variables and write the function rule.
Sample answer: What is
x = independent variable and
y = dependent variable and
the function rules is y = 24 - 4x?
The simplified value for:
|-31| + 15 -: 3
What is 36?
What kind of real number is
sqrt(5)
What is Irrational?
Evaluate
a/b
for a = 2/3 and b = 5/6.
What is
4/5
Simplify an exponent by multiplying the base by itself the indicated number of times. Justify.
What is False?
It is the power that must be simplified.
Independent variables is number of lemons 1, 2, 3, 4
Dependent variables is the cups of punch is 1.5, 3, 4.5, X
Define the value of X and write the function rule.
What is X = 6.0?
What is c = 1.5n?
The simplified value for:
18 + 3^2 -: (6 - 3)
What is 21?
What kind of real number is
35/5
(Name one or all of the correct answers.)
What is Rational, Integer, Whole, Natural?