Skip to content
Graphing Lines
Example 2

Example 2: Graphing Linear Functions

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

Problem

If y=−3x+6, find y at x=7\text{If }y=-3x+6\text{, find }y\text{ at }x=7

1. Recognize Pattern

y=mx+by=mx+b

2. Apply Method

y=−3x−2,  x=4⇒y=−14y=-3x-2,\;x=4\Rightarrow y=-14

3. Conclude

y=−15y=-15

Final answer

y=−15y=-15
Previous exampleNext exampleBack to lessonsPractice this skillTry in calculator