CR: Retake unit 4/5

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

How do you solve for x in a linear equation?

Back

Isolate x on one side of the equation using inverse operations.

Front

What does it mean if a value is undefined in mathematics?

Back

It means that the value cannot be determined or does not exist in the context.

Front

How do you calculate the cost per item when given total cost and quantity?

Back

Cost per item = Total cost / Quantity.

Front

What is an inequality in mathematics?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.

Front

What is the significance of a negative angle in trigonometry?

Back

A negative angle indicates a clockwise rotation from the positive x-axis.

Front

How do you find the value of k in an equation?

Back

Substitute known values into the equation and solve for k.

Front

What is the relationship between area and units of measurement?

Back

Area is expressed in square units, such as square meters (m²) or square miles (mi²).

Front

What is the process for graphing an inequality?

Back

1. Graph the boundary line. 2. Use a dashed line for < or >, and a solid line for ≤ or ≥. 3. Shade the appropriate region.

Front

What does it mean for a boxed lunch to cost the same amount?

Back

It means that the price per boxed lunch is constant regardless of the quantity ordered.