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Graphing Lines
Example 12

Example 12: Graphing Linear Functions

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

Problem

If y=3x−4, find y at x=−3\text{If }y=3x-4\text{, find }y\text{ at }x=-3

1. Recognize Pattern

y=mx+by=mx+b

2. Apply Method

y=3x−1,  x=3⇒y=8y=3x-1,\;x=3\Rightarrow y=8

3. Conclude

y=−13y=-13

Final answer

y=−13y=-13
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