Question

Indicate the equation of the line through (2, -4) and having slope of 3/5.

Answer 1

Use the equation y = mx +b where m is the slope, and plug in your values for x, y, m and solve for b. Then you'll have your equation! :)

Answer 2

Or use point slope form:
y-y₁ = m(x-x₁)
Where (x₁,y₁) is the point that you know.