Solving Systems by Graphing Intro Review

Front

What does the graph of a system of equations with no solution look like?

Back

The graph consists of parallel lines.

Front

What is the solution to a system of equations that has infinitely many solutions?

Back

Infinitely Many Solutions.

Front

What is the solution to the system of equations represented by the points (3,1), (1,3), (-1,3), (1,-3)?

Back

(1,3)

Front

What are the steps for graphing a line?

Back

1. Plot y-intercept 2. Count slope ratio to plot second point 3. Draw the line.

Front

What kind of slope is represented by a line that rises from left to right?

Back

Positive.

Front

What does it mean if two lines intersect at a point on a graph?

Back

The system of equations has one unique solution.

Front

What is the y-intercept of a line?

Back

The point where the line crosses the y-axis.

Front

How do you determine the slope of a line from two points?

Back

Slope = (y2 - y1) / (x2 - x1).

Front

What does a zero slope indicate about a line?

Back

The line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.