SOLUTION: How do I write an equation for y intercept of 21 and a slope of -5?

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Question 220448: How do I write an equation for y intercept of 21 and a slope of -5?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx+b, where m=slope and b= y-intercept.

Therefore,
y=-5x+21