Answer:
Step-by-step explanation:
In this case, the <em>y-intercept</em><em> </em>and <em>rate</em><em> </em><em>of</em><em> </em><em>change</em><em> </em>[<em>slope</em>] are given to us, so just put it in Slope-Intercept Form:
If you want it in <em>Standard Form</em>:
y = 4x - 21
- 4x - 4x
_________
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