Using the completing-the-square method, rewrite f(x) = x2 4x − 1 in vertex form.
a. f(x) = (x +2)^2 + 1
b. f(x) = (x + 2^)2
c. f(x) = (x + 2^)2 + 4
d. f(x) = (x + 2)^2 − 5

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

How do you find principle and simple interest

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0