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Graphing Lines
Example 4

Example 4: Graphing Linear Functions

Step-by-step worked example for this lesson track.

Problem

If y=1x+1, find y at x=6\text{If }y=1x+1\text{, find }y\text{ at }x=6

1. Recognize Pattern

y=mx+by=mx+b

2. Apply Method

y=3x−9,  x=3⇒y=0y=3x-9,\;x=3\Rightarrow y=0

3. Conclude

y=7y=7

Final answer

y=7y=7
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