Question

find the equation of the line containing given the pair of points
(-4,0) and (0,1)

Answer 1

y - y1 = m(x -x1)

0 - 1 = m(-4 - 0)

-1 = m(-4)

m = 4

y = mx + b

1 = 4(0) + b

1 = 0 + b

b = 1

y = 4x + 1

Answer 2

You can use the slope formula, then point slope