" (i) "12x+15

Let f : N to X : f(x) =4x^(2) +12x +15 . " Then " f^(-1)(y)=?

Let f: N to R be defined by f(x) = 4x^(2) + 12x+ 15 . Show that f: N to S where S is the range of function f, is invertible. Also find the inverse of f.

Fractorise: 12x +15

Solve : 12 x+ 15y + 18=0 18x - 7y + 86 =0

Determine the intervals in which the following functions are strictly increasing or striclty decreasing. f(x) = 2x^3 - 9x^2 + 12x + 15

Find the intervals on which each of the following functions is (a) increasing (b) decreasing f(x) = 2x^(3) + 9x^(2) + 12x + 15