Unit 4 Test REVIEW

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.

Front

What does it mean if a system of equations has one solution?

Back

It means the lines represented by the equations intersect at exactly one point.

Front

What does it mean if a system of equations has no solution?

Back

It means the lines represented by the equations are parallel and never intersect.

Front

What does it mean if a system of equations has infinitely many solutions?

Back

It means the lines represented by the equations are identical, lying on top of each other.

Front

What is a linear inequality?

Back

Front

How do you represent a situation with a linear inequality?

Back

Identify the variables, the relationship between them, and the constraints, then write the inequality that reflects that relationship.

Front

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

Back

The slope indicates the steepness of the line and the direction it goes. A positive slope means the line rises, while a negative slope means it falls.

Front

What is the y-intercept in a linear equation?

Back

Front

How do you solve a system of equations graphically?

Back

Graph each equation on the same coordinate plane and identify the point(s) where they intersect.

Front

What is the standard form of a linear equation?

Back