## Overview

- This pitch and shiny application was built for the “Developing Data Products” assignment.

## Parabola

**Formula**

\(y = \text{'Stretch or compress'} * (\text{'X intercept'} - x)^2 + \text{'Y intercept'}\)

**Stretch or compress**

- Strech (> 1.0) or compress (< 1.0) parabola
- Value between 0.2 and 1.8

**X intercept**

- Vertex position on the x axis
- Value between -10 and 10

**Y intercept**

- Vertex position on the y axis
- Value between -10 and 10

## Shiny App: Parabola

**Sidebar panel**

sliderInput for Stretch or compress (min=0.2, max=+1.8, step=0.2)

sliderInput for X Intercept (min=-10, max=+10, step=0.5)

sliderInput for Y Intercept (min=-10, max=+10, step=0.5)

**Main panel (ggplot)**

Title contains the customized parabola formula

Customized parabola (blue)

Marked vertex of customized parabola (red)

Normal parabola and its vertex (light grey)

## Shiny App: Example