(PLEASE HELP ASAP)
Find the measure of angle

When you answer this can you explain

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Apossible wavelength for the color blue is 0.000000492 meter. which of the following is a reasonable estimate for this wavelength for the color blue? a. 5 × 10-6 m b. 5 × 107 m c. 5 × 10-7 m d. 5 × 106 m