8th Math: First Semester Review

Front

What is an inequality statement?

Back

An inequality statement is a mathematical expression that shows the relationship between two values that are not equal, using symbols like <, >, ≤, or ≥.

Front

How do you represent a cost function for renting an item?

Back

A cost function can be represented as c = mx + b, where c is the total cost, m is the cost per unit (e.g., per hour), x is the number of units (e.g., hours), and b is any fixed cost (e.g., deposit).

Front

What does the point (1, 12) represent in a graph of a rental company's prices?

Back

The point (1, 12) indicates that the company charges $12 for 1 hour of rental.

Front

How do you convert scientific notation to standard form?

Back

Front

What is the meaning of the membership fee in a pricing model?

Back

The membership fee is a one-time charge that allows customers to access services or products at a reduced rate for a specified period.

Front

What is the formula for finding the total cost of renting a machine?

Back

The total cost can be found using the formula c = mh + b, where m is the hourly rate, h is the number of hours rented, and b is the deposit.

Front

What does the symbol ≥ mean in an inequality?

Back

The symbol ≥ means 'greater than or equal to', indicating that one value is either greater than or equal to another.

Front

How do you identify the slope in a linear equation?

Back

The slope in a linear equation of the form y = mx + b is represented by m, which indicates the rate of change of y with respect to x.

Front

What is the standard form of a linear equation?

Back

The standard form of a linear equation is Ax + By = C, where A, B, and C are integers, and A should be non-negative.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio, meaning as one quantity increases, the other increases at a consistent rate.