Send a chat 10. Find the equation in Standard Form of a circle with center (1,2) and r-2. 11. Find the center and radius of (x-2)2+(y-3)²=16. C=\2, 3) rn4 12. Find the center and radius of (x+2)²+(y+4)²=25. Cof2,4=5 13. For the following functions f(x)=x²+5x-3 and g(x)=x+5, find: a) f(-1) b) g(s). c) f(x+2), d) (f-g)(x) e) (fg)(-2) f) (f+g)(x) g) (f•g)(1) h) (g-f)(x) -27 14. For the following function f(x)=x²+4, find the difference quotient. 15. For the following function f(x)=2x+4, find the difference quotient.

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.