Question

Write the equation of the line that passes through the point (4,-2) and has a slope of

-1/2
y = -1/2x + 4
y = -1/2x - 4
y = -1/2x
y = -1/2x + 3

Answer 1

y=-1/2x

Explanation:

y-(-2)=-1/2(x-4)

y+2=-1/2x+2

y=-1/2x

Answer 2

The equation of a line is written as y = Mx + b where m is the slope and b is the y intercept.

Replace y and x with the given point and m with the given slope to solve for b:

-2 = -1/2(4) + b

Simplify:

-2 = -2 + b

Add 2 to both sides:

B =0

The equation becomes: y = -1/2x