Writing Equations from a Graph

Front

What is the equation of a vertical line that passes through x = -2?

Back

x = -2

Front

Write the equation of a line with slope m = -2 and y-intercept b = 12.

Back

y = -2x + 12

Front

Given a slope of -4 and a y-intercept of -4, what is the equation of the line?

Back

y = -4x - 4

Front

Write the equation of a line with slope 19 and y-intercept 4/5.

Back

y = 19x + \frac{4}{5}

Front

Identify the slope and y-intercept in the equation y = -\frac{1}{3}x + 1.

Back

Slope: -\frac{1}{3}, y-intercept: 1

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.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope (m) = \frac{y2 - y1}{x2 - x1}.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

Front

If a line has a slope of 0, what type of line is it?

Back

A horizontal line.

Front

If a line has an undefined slope, what type of line is it?

Back

A vertical line.