Which input value produces the same output value for the
two functions on the graph?
x = -3
x= -2
x= -1
x = 3

Can any one me with the answers to these questions asap?

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?