Could someone please help me?

Aline passes through the point (2, -4) and has a slope of 0, what is the equation of the line? plz fast

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

When only separate discreet points are graphed it is called?