Question

A line whose slope is 4 and passes through the point (0, -9) lies on the line whose equation is:

a.4x y = -9
b.4x - y = 9
c.y - 4x = 9

Answer 1

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

y+9 = 4(x)
y-4x=-9
4x-y=9 (B)