Review

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the ratio of the vertical change to the horizontal change between two points on the line.

Front

What is a coefficient in algebra?

Back

A coefficient is a numerical or constant quantity placed before a variable in an algebraic expression, indicating how many times the variable is multiplied.

Front

What does it mean if an equation has no solution?

Back

An equation has no solution when there are no values for the variable that can satisfy the equation, often resulting in a contradiction.

Front

Calculate: (82 ÷ 2) × 3 – 17

Back

106

Front

Back

x = 70

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

Front

Define a variable in mathematics.

Back

A variable is a symbol used to represent an unknown value in mathematical expressions and equations.

Front

What is an expression in algebra?

Back

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

Front

What is the difference between a constant and a variable?

Back

A constant is a fixed value that does not change, while a variable is a symbol that can represent different values.

Front

What does it mean for an equation to have infinite solutions?

Back

An equation has infinite solutions when any value of the variable satisfies the equation, often resulting in an identity.