A line contains the points (4,2) and (0,1). What is the equation of the line?

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

If angle 2=3x +1 and angle 3=2x +4what is angle 2