Question

A parabola intersects the x-axis at x=3, equals, 3 and x=9.

Answer 1

Answer: x is 6

Explanation:

where a and b are x intercepts given to us.

So rewriting in factored form:

y = (
`x-3`)(
`x-9`)

so now you have to simplify it using the formula
`y=`
`ax^(2)`
`+`
`bx-c`

y=
`x^(2)`-
`12x`+
`27`

so with this formula
`x=(-b)/(2a)` we can find the x coordinate

`x=(-(-12))/(2(1))`

and the answer would be 6