maths question (1 Viewer)

[izzy_xo]

what angle does the tangent to the curve
y=x^2 + 2x make with the positive direction of the x-axis
at the point where x=-1.5

hi everyone,
i was just wondering if the answer to this
was 45 or 135 degrees.

cheers.

 

[Trebla]

Draw a diagram, it would then be clear that it is 135 degrees

 

[izzy_xo]

thanks

 

[hscishard]

Remember its like trigonometry. Anti-clockwise angles

 

[mirakon]

The angle has to be taken such that 0 degrees is the positive x-axis and go anti-clockwise from there.

 

[super.muppy]

remember that ur answer on ur calculator may be deceiving since its the acute version so be mindful.