Unit 1 Review

Front

What is the formula to calculate the total cost of a dentist visit if the price is $50 and an additional $100 is charged for each cavity filled?

Back

Total Cost = 100n + 50, where n is the number of cavities.

Front

What is a y-intercept in a graph?

Back

The y-intercept is the point where the graph intersects the y-axis, represented as (0, y).

Front

Back

The ordered pair (-1, -5) is a solution.

Front

What mathematical operation is used to simplify the expression 3(x + 2) to 3x + 6?

Back

Distribution.

Front

What operation is performed to go from the equation 2x - 1 = 5x to -1 = 3x?

Back

Add/Subtract to both sides.

Front

What does the term 'distribution' refer to in mathematics?

Back

Distribution refers to multiplying a term across a sum or difference inside parentheses.

Front

How do you identify a solution to a linear equation?

Back

A solution is an ordered pair (x, y) that satisfies the equation when substituted.

Front

What is the significance of the point (0, 1) in a graph?

Back

It represents the y-intercept, where the graph crosses the y-axis.

Front

What is the first step to solve the equation 3x + 6 = 18?

Back

Subtract 6 from both sides.

Front

What does 'combine like terms' mean?

Back

It means to simplify an expression by adding or subtracting terms that have the same variable raised to the same power.