Question

What is the equation in point slope form of the line that passes through the point (-1, -3) and has a slope of 4?

y-1=4(x-3)
or
y+3=4(x+1)

Answer 1

y + 3 = 4(x + 1)

Explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

here m = 4 and (a, b) = (- 1, - 3), hence

y + 3 = 4(x + 1) ← in point- slope form