Express quotient in scientific notation

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

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?