Unit 4 Flashcard #1: Lessons 1-4

Front

What type of slope does a graph with a downward trend have?

Back

Negative slope

Front

In the equation y=mx+b, what does 'm' represent?

Back

Slope

Front

If a system of equations has no solution, what does the graph look like?

Back

Parallel lines

Front

Solve the system of equations: y = 5x + 1 and y = 3x + 13. What is the solution?

Back

(6, 31)

Front

Using substitution, solve the system of equations: y = 2x + 1 and y = 3x - 4. What is the solution?

Back

(5, 4)

Front

What is the definition of a positive slope?

Back

A slope that rises from left to right.

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.

Front

What is the y-intercept in the equation y = mx + b?

Back

The value of y when x = 0.

Front

How do you determine if two lines are parallel?

Back

They have the same slope but different y-intercepts.