Paul M. answered • 4d

Learn "how to" do the math and why the "how to" works!

A line with intercepts as given is x - (y/2) = 1 which has slope 2.

A line perpendicular to this has slope -1/2.

The equation of the line required is -1/2 = (y-3)/(x+4)

You should be able to "massage" this form into slipe-intercept form.