A) If C. A. and C. I. are the compound amount and compound interest of a sum P in T years at R% p. a. respectively, write the relationships among the following variables.

(i) P, T, R, and CA(Compounded annually)

(ii) P, T, R and CI (Compounded annually)

(iii) P, T, R and CA (Compounded semi-annually)

(iv) P, T, R and CI (Compounded semi-annually)

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)