CFA #3 Review

Front

What does it mean when solving a linear system results in a statement like 8 = 8?

Back

This indicates that the system of equations has infinitely many solutions, meaning the equations represent the same line.

Front

What is the substitution method in solving linear equations?

Back

The substitution method involves solving one equation for one variable and then substituting that expression into the other equation.

Front

Back

Front

How do you interpret the solution of a linear system graphically?

Back

The solution is the point where the graphs of the equations intersect.

Front

What is a system of linear equations?

Back

A set of two or more linear equations with the same variables.

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

Back

It is a straight line with a slope of -2 and a y-intercept of 6.

Front

How can you determine if two lines are parallel from their equations?

Back

If the slopes of the lines are equal, the lines are parallel.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x = 0.

Front

What does the term 'ordered pairs' refer to in the context of linear equations?

Back

Ordered pairs are pairs of numbers (x, y) that represent points on a graph.