Unit 2 and 3 Review

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

How do you determine if a point is a solution to an inequality?

Back

To determine if a point is a solution to an inequality, substitute the coordinates of the point into the inequality. If the inequality holds true, then the point is a solution.

Front

What does a dotted line represent in a graph of an inequality?

Back

A dotted line indicates that the points on the line are not included in the solution set of the inequality.

Front

What does a solid line represent in a graph of an inequality?

Back

A solid line indicates that the points on the line are included in the solution set of the inequality.

Front

Write an inequality for the total weight of sausage links (s) and briskets (b) if sausage links weigh 2 lb and briskets weigh 6 lb, with a maximum of 120 lb.

Back

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width: Area = length × width.

Front

How do you simplify an expression?

Back

To simplify an expression, combine like terms, reduce fractions, and apply mathematical operations to make the expression as concise as possible.

Front

What is a solution to a system of equations?

Back

A solution to a system of equations is a set of values for the variables that makes all equations in the system true.

Front

What does it mean if (0,0) is a solution to a system of equations?

Back

If (0,0) is a solution to a system of equations, it means that when you substitute x=0 and y=0 into all equations, they hold true.

Front

What is the significance of the shaded region in a graph of an inequality?

Back

The shaded region represents all the possible solutions to the inequality.