Appendix B - Trigonometry Review - Exercise Set B - Page A26: 71

Ans. a. 60° b. 117°

Given:- a. y=√3x+2 We know that tan$\theta$=m=slope Comparing above equation with y=mx+c m=√3 tan$\theta$=√3 $\theta$=60° b. y=-2x-5 We know that tan$\theta$=m=slope Comparing above equation with y=mx+c m=-2 tan$\theta$=-2 $\theta$=180-63.4=116.6~117° Ans.