18 terms

# Algebra 1 terms and Practice Problems; Chapter 1 Lesson 1

How to learn Algebra 1.
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variable
A letter that stands for a number. 1-1
algebraic expression
An expression that contains at least one variable. 1-1
substituting
The act of replacing a variable with another number. 1-1
evaluate
To substititute numbers for all variables, and then to calculate. 1-1
natural numbers
Counting numbers; 1, 2, 3... 1-1
whole numbers
Natural numbers ( counting numbers) and zero; 0, 1, 2, 3... 1-1
rational numbers
Natural numbers, whole numbers, negative numbers, and fractions are included in this tpye of number 1-1
grouping symbols
Paranathesis group numbers, which means they would be called this. 1-1
13
EVALUATE 1-1: x+6 for x=7.
10
EVALUATE 1-1: 1+y for y=9
10
EVALUATE 1-1: m-2 for m=12
48
EVALUATE 1-1: 4h for h=12
6
EVALUATE 1-1: p/5 for p=30
-30
EVALUATE 1-1: 5g for g= -6
1/6
EVALUATE 1-1: y/12 for y=2
-15
EVALUATE 1-1: y-10 for y = -5
3
EVALUATE 1-1: 10x+2 for x =1/10
1
EVALUATE 1-1: 12/x for x=12