Graph h (x) = 3 cos (2x) - 1 use 3.14 for t. use the sine tool to graph the function. the first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.

See  attachment

Step-by-step explanation:

We want to graph .

We can graph this function easily by applying transformations to the parent function.

The base function is

The transformed function has an amplitude of 3 but is shifted 1 unit down, so the minimum value is -4 and the maximum is 2.

The function is shrunk horizontally by a factor of 1/2.

The graph of the transformed function is shown in the attachment

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: