Slope-Intercept Form Review

Front

What is the slope of a line that passes through the points (1, -19) and (-2, -7)?

Back

-4

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Front

If y varies directly with x, and y is 84 when x is 16, what is the equation representing this relationship?

Back

y = 5.25x

Front

What ordered pair does a direct variation always pass through when graphed?

Back

(0, 0)

Front

What is the slope of a line represented by the table with values that decrease as x increases?

Back

Negative slope.

Front

How do you calculate the slope (m) between two points (x1, y1) and (x2, y2)?

Back

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

In the slope-intercept form of a line, what does 'b' represent?

Back

The y-intercept of the line.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.