The graph below shows a proportional relationship between xxx and yyy. What is the constant of proportionality, \dfrac{y}{x} x y start fraction, y, divided by, x, end fraction ?

4

Step-by-step explanation:

We can find the constant of proportionality by finding the value of y when x=1

y = 4 when x = 1

The constant of proportionality y/x, is 4/1 or just 4.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐