2. sketch each of the following graphs of quadratic functions.
(a) f(x) = x2 + 5
(b) f(x) = 2x2 + 1
(c) f(x) = -x2 + 2

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

How many terms does the polynomial x^2 y^2 have