Keystone Review Module 1

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Tags

CCSS.6.EE.B.8

Front

How do you solve an inequality?

Back

To solve an inequality, isolate the variable on one side of the inequality sign using inverse operations, similar to solving an equation.

Front

What does the solution to the inequality 3000 < 75c represent in the context of choosing a cleaning plan?

Back

The solution indicates the number of cleanings (c) at which Plan A becomes more cost-effective than Plan B.

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables that can be solved together.

Tags

CCSS.HSA.REI.C.6

CCSS.8.EE.C.8B

Front

How do you graph a system of inequalities?

Back

To graph a system of inequalities, graph each inequality on the same coordinate plane and identify the region where the solutions overlap.

Tags

CCSS.HSA.REI.D.12

Front

What is the significance of the slope in a linear equation?

Back

The slope indicates the rate of change of the dependent variable with respect to the independent variable.

Tags

CCSS.8.EE.B.5

Front

What is a linear equation?

Back

A linear equation is an equation that forms a straight line when graphed, typically in the form y = mx + b.

Tags

CCSS.HSF.LE.A.2

CCSS.8.F.B.4

Front

What does the term 'variable' mean in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.

Tags

CCSS.6.EE.A.2B

Front

What is the formula for calculating total cost based on unit price and quantity?

Back

Total Cost = Unit Price × Quantity.

Tags

CCSS.6.RP.A.3B

Front

How do you interpret the solution of a system of equations in a real-world context?

Back

The solution represents the values of the variables that satisfy all equations in the system, often corresponding to quantities or amounts in a real-world scenario.

Tags

CCSS.8.EE.C.8C