Question

Write a quadratic function for the area of the figure.​ Then, find the area for the given value of x.

x=2.5

Answer 1

Explanation:

`A=(1)/(2) * base* height`

So we get

`A=(1)/(2) x^2`

Sub in
`x=2.5` gives

`A=(1)/(2) (2.5)^2`

`=(1)/(2) ((5)/(2) )^2`

`=(1)/(2) ((25)/(4) )`

`=(25)/(8)`

`=3(1)/(8)`

`=3.125`

The last 3 are all equally good answers....I don't know which form they are looking for.