Study Guide 1 Snap 2

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |−5| = 5.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero but in the opposite direction. For example, the opposite of 5 is -5.

Front

What is a coordinate plane?

Back

A coordinate plane is a two-dimensional surface formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis). Points are located using ordered pairs (x, y).

Front

In which quadrant is Point (3, 4) located?

Back

Point (3, 4) is located in Quadrant I, where both x and y coordinates are positive.

Front

What is the value of 3^2?

Back

The value of 3^2 is 9, since 3 multiplied by itself equals 9.

Front

How do you simplify the expression (8p - 9) + (6 - 5p)?

Back

To simplify, combine like terms: (8p - 5p) + (-9 + 6) = 3p - 3.

Front

What is the value of the expression 4^3?

Back

The value of 4^3 is 64, since 4 multiplied by itself three times equals 64.

Front

What does it mean for an equation to be a true statement?

Back

An equation is a true statement if both sides of the equation have the same value when evaluated.