Plot a point at the Y-Intercept of -1 and Plot another point at the X-intercept of 1 and the DIGITS graphing tool should make a line from there
        
             
        
        
        
To find AB(x) and BC(y), you can do(there are multiple ways you can do this):
tan A = 
tan 60° =  or (tan 60°) · 7 = y
 or (tan 60°) · 7 = y
tan 60° = 
√3 · 7 = y
7√3 cm = y
sin B = 
sin 30° =  or
 or 
sin 30° =  =
 = 
x = 
x = 14 cm
AB = 14cm
BC = 7√3 cm
 
        
             
        
        
        
Answer:
I think the top and the two in the middle but I can't really see it's a blurry picture
 
        
             
        
        
        
I hope you can understand my messy handwriting