y = 2x
Comparing y=mx + b
m = 2
The y-intercet and x -intercept is at (0,0)
Find the hypotenuse using pythagoras theorem
hypotenuse² = adj² + opp²
= (-1)² + (-2)²
= 1 + 4
= 5
hypotenuse =√5
The six trigonometric values can be determined by applying the trigonometric ratio
sinθ = opp/ hyp
[tex]=\frac{-2}{\sqrt[]{5}}[/tex]Rationalize
[tex]=-\frac{2\sqrt[]{5}}{5}[/tex]cosθ = adj / hyp
[tex]=\frac{-1}{\sqrt[]{5}}[/tex]rationalize
[tex]=-\frac{\sqrt[]{5}}{5}[/tex]