Unit 4 Flashcard #3 Review

Front

What does it mean when a graph is shaded 'below'?

Back

It indicates that the solutions to the inequality are all the points below the line on the graph.

Front

When do you need to flip the inequality sign in an equation?

Back

You need to flip the sign when you multiply or divide both sides of the inequality by a negative number.

Front

How do you determine if a point is a solution to a system of equations?

Back

Substitute the x and y values of the point into both equations. If both equations are true, the point is a solution.

Front

What is the general form of an absolute value function?

Back

Front

What does it mean for an ordered pair to be a solution of a system of equations?

Back

It means that the ordered pair satisfies all equations in the system.

Front

What is the significance of the vertex in an absolute value graph?

Back

The vertex is the highest or lowest point of the graph, depending on the direction it opens.

Front

Back

Front

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

Back

A solid line indicates that points on the line are included in the solution, while a dashed line indicates they are not.

Front

What does the slope of a line represent in a linear equation?

Back

The slope represents the rate of change of y with respect to x, indicating how steep the line is.

Front

How can you find the y-intercept of a linear equation?

Back

Set x = 0 in the equation and solve for y.