Which function is graphed below?

The function graphed below is or .

Step-by-step explanation:

The graph represents a second order polynomial function (a parabola), whose axis of symmetry is the x-axis and whose form is presented as follows:

Where:

, - Dependent and independent variable, dimensionless.

, - Horizontal and vertical components of the vertex, dimensionless.

- Vertex constant, dimensionless. If , then vertex is an absolute minimum, otherwise it is an absolute maximum.

After a quick observation, the following conclusions are done:

1) Vertex is an absolute minimum () and located at (-2, 0).

2) Parabola pass through (2, 2).

Then, the value of the vertex constant is obtained after replacing all known values on expression prior algebraic handling: (, , , )

The function is:

The inverse function of this expression is

The function graphed below is or .

step-by-step explanation:

it's 15

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: