In which quadrant is the number 6 – 8i located on the complex plane?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line

Can someone me find the original price? the discount is 5% and the sale price is $68.40