Comment
The slope is just read, and the point is used to determine b in the general equation.
General Formula
y = mx + b
Givens
m = 3/5
b is derived from (2,-4)
Derivation
y = 3/5 x + b The slope is solved.
y = -4 when x = 2
-4 = 3/5 2 + b
-4 = 3*2/5 + b
-4 = 6/5 + b Subtract 6/5 from both sides
-4 - 6/5 = b Multiply top and bottom of 4 by 5 to bring it to a common denominator of 5
[tex] \frac{-4*5}{1*5}-\frac{6}{5}=\text{b} [/tex]
-26/5 = b
Final equation
y = 3/5 x - 26/5 <<<<<< answer
Discussion
If there are choices you should list them, because this question can be written other ways.