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The table shows the side length and approximate area of an octagonal stop sign. Area of a stop sign a 2-column table with 5 rows. The first column is labeled side length (inches), x with entries 5, 10, 15, 20, 25. The second column is labeled area, f(x) with entries 120; 480; 1,080; 1,920; 3,000. Which function can be used to compute the approximate area, in square inches, of a stop sign if it has a side length of x inches? f(x) = 4. 8x2 f(x) = 4x2 f(x) = (4. 8)x f(x) = (4)x.

Respuesta :

f(x) = 4. 8x² function can be used to compute the approximate area, in square inches, of a stop sign if it has a side length of x inches.

What do function and example exactly mean?

A function, which produces single output from either a single input, is an illustration of a rule. Alex Federspiel was contacted to collect the image. An illustration of this is the equation y=x2. For each input of x, there is simply one output of y. Considering that x is actually the input value, we would claim that y is just a rational number.

Briefing:

area = (# of sides * side length^2) / [4 * tan (180/n)]

area = (8 * x^2) / 4 * tan (22.5)

area = 8 x^2 / (4 * 0.41421)

area = 8 x^2 / 1.65684

area = 4.8 x^2

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