Which table shows a proportional relationship between x and y x 2 4 5 6 y 6 12 18 21
x 3 5 7 8 y 1.5 2.5 3 4.5
x 1 3 4 5 y 50 150 200 250
x 1 2 3 6 y 1.5 3 6 9

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Me i’m stuck on all these questions besides the two bottom ones

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?