Question

how do you find the equation of the line given:m=-2;f(1)=2

Answer 1

y = mx -m(1) + 2

Answer 2

the most common way is to start with a slope definition and work your way to a slope intercept

Answer 3

but the point slope form is just as valid an equation for a line as any other

Answer 4

to which:

y-Py = m(x-Px)

y - 2 = -2(x-1) in this case