Graphing the equation of a straight line

Front

What is the equation of a vertical line?

Back

x = constant

Front

What is the equation of a horizontal line?

Back

y = constant

Front

Graph the line x = 1.

Back

A vertical line that passes through the point (1, y) for all values of y.

Front

What is the coordinate pair of the point on the line y = 4?

Back

(x, 4) for any value of x.

Front

What type of line is represented by the equation y = 4?

Back

Horizontal line.

Front

What does the slope (m) represent in the equation y = mx + b?

Back

The rate of change of y with respect to x.

Tags

CCSS.HSF.LE.B.5

Front

What does the y-intercept (b) represent in the equation y = mx + b?

Back

The point where the line crosses the y-axis.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

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

Back

m = (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.5

Front

What is the slope of a vertical line?

Back

Undefined.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a horizontal line?

Back

0.

Tags

CCSS.8.EE.B.5