Question

A ball is thrown into the air. The height of the ball can be modeled by the equation y = 5 + 30x - 4x2

Answer 1

The function is quadratic

Step-by-step explanation:

The quadratic functions have the following form:

`y=ax^2+bx+c`

Where a, b, and c are constants.

In this case, the function that model the height of the ball can be rewritten as:

`\begin{gathered} y=5+30x-4x^2 \\ y=-4x^2+30x+5 \end{gathered}`

Since they have the same form where a = -4, b = 30, and c = 5, we get that the function is quadratic.