Question

Hello,

   So some questions I want to check my answer: 

q1,

If (a,7) is y-intercept, then 5x+1=?? 

My solution: 

since (a,y) is y-intercept then a=0 (Well a is in the x-axis therefore x=0)

5(0)+1=1 

q2,

\(\sqrt{3}*tan(x)=sin(30)*cos(60)+sin(60)*cos(30)\)

Well on the right of the equation it is sin addition identity, sin(a+b) 

so 

sin(30+60)=sin(90)=1 

\(tan(x)=1/\sqrt{3}\)

x=tan^-1(1/sqrt(3))

Thank you in advance!