I need help solving this problem

-- Another point

Step-by-step explanation:

Given

Solving (a): Another point

Substitute 1 for x and 8 for f(x) in

Remove absolute bracket

Substitute 8 for a in

Let x = -1

Remove absolute bracket

So, another point is:

Solving (b): The value of a

This has been solved in (a) above

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step-by-step explanation:

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: