Answer:
The equation of the parabola that models the path of the long jumper through the air is
.
Step-by-step explanation:
Mathematically, we know that parabolas are second-order polynomials and every second-order polynomials, also known as quadratic functions, can be constructed by knowing three different points of the curve. The standard form of the parabola is:

Where:
- Horizontal distance from the start line, measured in meters.
- Height of the long jumper, measured in meters.
,
,
- Polynomial constants, measured in
, dimensionless and meters, respectively.
If we know that
,
and
, this system of linear equations is presented below:
(Eq. 1)
(Eq. 2)
(Eq. 3)
The coefficients of the polynomial are, respectively:
,
, 
The equation of the parabola that models the path of the long jumper through the air is
.
But we need
measured in centimeters, then, we use the following conversion:

Then, we get that:

Where
and
are measured in meters and centimeters, respectively.
The equation of the parabola that models the path of the long jumper through the air is
.