WILL MARK BRAINLIEST HELP PLEASE

7.) m = 1/3 ; b = -2.5

8.) m = 2 ; b = 2

Step-by-step explanation:

For m, either do the rise over run method or use 2 points and do (y2-y1)/(x2-x1).

For b, just look at the y-intercept/where it crosses the y axis

I believe those are the right answers but not too sure because the numbers on the graph are a bit blurry so i just assumed it counted by ones.

there is no question content here, but you for the free points! : d

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: