Find the constant of proportionality k as a fraction in simplest form. Then enter an equation for the relationship between x and y. x 6 12 18 24
y 2 4 6 8

The constant of proportionality, k is equal to

The equation is y =

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)