Math 8 Q2 Benchmark Review

Front

What is the total cost function for Peppy Pets if they charge a flat fee of $15 plus $3 per hour?

Back

Total Cost = 15 + 3h, where h is the number of hours.

Front

What is the total cost function for Happy Hounds if they charge a flat fee of $21 plus $1 per hour?

Back

Total Cost = 21 + 1h, where h is the number of hours.

Front

How do you determine the number of hours when two cost functions are equal?

Back

Set the two cost functions equal to each other and solve for h.

Front

What does it mean if an equation has infinite solutions?

Back

It means that there are countless values for the variable that satisfy the equation.

Front

Back

It indicates that the two equations are equivalent, leading to infinite solutions.

Front

Back

Distribute, combine like terms, and isolate a to find a = 2.

Front

What is the first step in solving a system of equations algebraically?

Back

Choose a method: substitution, elimination, or graphing.

Front

What does the solution (3, 4) represent in a system of equations?

Back

It represents the point where the two lines intersect on a graph.

Front

Back

Use elimination or substitution to find the values of x and y.

Front

What does it mean if two equations in a system have the same slope but different y-intercepts?

Back

The lines are parallel and there is no solution to the system.