Slope & Y-Intercept Flashcard

Front

What does 'm' represent in the equation y=mx+b?

Back

Slope.

Front

What does 'b' represent in the equation y=mx+b?

Back

Y-intercept.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Use the formula: slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the slope of a horizontal line?

Back

0.

Front

What is the slope of a vertical line?

Back

Undefined.

Front

If the slope of a line is positive, what does that indicate about the line's direction?

Back

The line rises from left to right.

Front

If the slope of a line is negative, what does that indicate about the line's direction?

Back

The line falls from left to right.

Front

What is the y-intercept of a line?

Back

The point where the line crosses the y-axis.

Front

How can you determine the y-intercept from the equation y=mx+b?

Back

The y-intercept is the value of 'b'.

Front

What is the slope of the line represented by the equation y = 3x + 4?

Back

3.