Finding the Equation of a Graphed Line - Concept

Concept Concept (1)

Sometimes we'll be given a graph of a line, and told to find the equation. There are many methods of finding the equation of a line with only a graph such as finding the slope and a point or finding two points. In order to understand finding the equation of line with its graph, one should understand the different forms of an equation of a line, especially point-slope and slope-intercept form.

Sample Sample Problems (3)

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Finding the Equation of a Graphed Line - Problem 1

Find the equation of the line.

Problem 1
How to write the equation of a graphed line if the y-intercept is shown.
Finding the Equation of a Graphed Line - Problem 2

Find the equation of the line.

Problem 2
How to write the equation of a graphed line if the y-intercept is not shown.
Finding the Equation of a Graphed Line - Problem 3

Find the equation of each line.

Line 1:
Line 2:
Problem 3
How to write the equations of graphed horizontal and vertical lines.