Ineed number 4. my math class is in an hour, can someone me by then? ?

the picture below is what your graph should look like.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

one set of data has more variation than the other. hope this !