For the quadratic function f(x) = -(x + 2)2+ 4 in vertex form, find the following key features: vertex ( , )
y-intercept ( , )
Roots x =
and x =
Axis of Symmetry x =

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)