Question

find the equation of a line passing through (-7,5) and a slope of -2

Answer 1

y-y1=m(x-x1) use slope point form

Answer 2

plug in the points and slope

m=-2 y1=5 x1=-7
y-5=-2(x-(-7))

Answer 3

that's the equation already.. but they might want you to put it y-intercept form? so solve
y-5=-2(x+7)
y-5=-2x-14
y=-2x-9