Equation of a tangent and angles between lines question help (1 Viewer)

[nazfiz]

The line y=x+4 cuts the parabola with equation y=x^2-2x at two points A and B. Find the magnitude of the angles that the tangents to the curve at A and B make with the X-axis.

Thank you in advance for any help. (working out would be appreciated)

 

[nazfiz]

if I use the formula for the -4 gradient I am getting 75 degrees and 56 minutes. The answers ,however says 104 degrees and 2 minutes. Can you explain why?

 

[nazfiz]

oh okay no worries. thanks

 

[cheese_cheese]

In all reality you will never use this once out of the HSC.