What is the constant of proportionality in the equation y=5/9 x?

Can someone me out here number 4 plz

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle

Write the equation of the circle centered at (10,-2) with radius 2.