Y = x^2- 2x - 3 A parabola in the xy-plane is given by the
equation above. Which of the following
equivalent forms of the equation displays the
coordinates of the vertex of the parabola as
constants or coefficients?
A) y = (x − 1)2 – 4
B) y = (x - 1)2 – 2
C) y = (x – 3)(x + 1)
D) y + 3 = x(x + 2)

Which of the following can be used to explain a statement in a geometric proof?

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?