What is the solution of the system? use a graph.
y = –3x + 2
y = –3x + 4

a. (0, 4)
b. (0, 2)
c. infinitely many solutions
d. no solutions

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: