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Math Ch. 7
Expressions and Patterns
Term | Definition |
---|---|
numerical expression | a combination of numbers and at least one operation (Ex: 4 x 7) |
evaluate | to find the value of a numerical expression |
order of operations | a set of rules to follow when more than one operation is used in a numerical expression |
Step 1 in Order of Operations | Perform operations in parentheses. |
Step 2 in Order of Operations | Find the value of exponents. |
Step 3 in Order of Operations | Multiply and Divide in order from left to right. |
Step 4 in Order of Operations | Add and subtract in order from left to right. |
sequence | a list of numbers that follow a specific pattern |
term | each number in a sequence is called a _______ |
coordinate plane | formed when two perpendicular number lines intersect, one number line has numbers on the x-axis and the other has numbers on the y-axis |
origin | the point where the two axes intersect on a coordinate plane (0,0) |
ordered pair | a pair of numbers that is used to name a point |
x-coordinate | the first number in an ordered pair, goes on the x-axis |
y-coordinate | the second number in an ordered pair, goes on the y-axis |