equation of the line with a slope of -3 that passes through (2,4)?

Question

How do I find that equation or what is the answer?

Answer 1

y = mx + b

 

m = -3  [given]

 

y = -3x + b

 

Use the given point (2,4) to find b.

 

4 = -3(2) + b

 

b = 10

 

y = -3x + 10