Systems Flashcard Review

Front

What symbol is used in an inequality to indicate 'less than or equal to'?

Back

≤

Front

How can you tell if the graph of an inequality will have a solid line?

Back

The symbol has 'or equal to.'

Front

Write the system of equations for the situation: Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes, and 2 haircuts and 4 hair dyes takes 450 minutes.

Back

3x + 2y = 315 and 2x + 4y = 450

Front

In a graph of inequalities, where is the solution if the shaded area is purple?

Back

The solution is in the purple area.

Front

If Bobby and Robby's ages sum to 66 and Robby's age is 6 more than three times Bobby's age, what are their ages?

Back

Bobby is 15 and Robby is 51.

Front

What does the symbol '>' represent in an inequality?

Back

'Greater than'.

Front

What does the symbol '<' represent in an inequality?

Back

'Less than'.

Front

What is the difference between a solid line and a dashed line in graphing inequalities?

Back

A solid line indicates 'or equal to,' while a dashed line indicates 'not equal to.'

Front

What is a system of equations?

Back

A set of two or more equations with the same variables.

Front

How do you solve a system of equations graphically?

Back

By plotting the equations on a graph and finding the intersection point.