Question

Choose the equation of the line passing through the point (-1, -2) and perpendicular to y = one fourthx + 2.

Answer 1

you want a slope of -4

y=-4x+b

put in that (x,y) point and solve for b.

Answer 2

a landing airplane, moving in a straight line , passes over two points (p and q) which are 300 feet apart. when the airplane is above p, as seen from Q, its angle of elevation is 60 degress, and when above Q, as seen from p, its angle of elevation is 40 degress. at what distance from q will the airplane land?