. Angle between the line is c . units . a = .
y = x + 100000 , cost of TV sets ` , , Exercise . . . x and x .
and x . ( ) i = Exercise . .(i) x (ii) x - = .(i) C ( , ), r = (ii) C ( , ), r = (iii) (iv) . x - = .
R lies inside, P lies outside and Q lies on the circle. . units . p = .
Exercise . . xy = . Length of latus rectum = , Focus F - - .
Axis Vertex Focus Equation of directrix Length of latus rectum y = V ( , ) F ( , ) x + = units . Problem Axis Vertex Focus Equation of directrix Length of latusrectum (a) = y = V ( , ) F ( , ) x = – units (b) = x = V ( , ) F ( , ) y = – units (c) =- x = V ( , ) F ( , – ) y = units . ( . The output and the average cost at the vertex are kg.
and ` . . when x = months Exercise . (b) (c) (c) (c) (b) (c) (a) (c) (a) (b) (c) (a) (d) (a) (a) (d) (a) (c) (b) (b) (a) (d) (b) (b) (b) Miscellaneous problems .
(– , – ) is on the line, ( , ) is above the