How to determine the upper and lower quartile in a box plot

The lower quartile is on the lower end of the box plot, and the upper quartile is on the upper part of the box plot.

To determine lower quartile:

- Use the formula (N + 1) × 1/4

To determine upper quartile:

- Use the formula (N + 1) × 3/4

Hope this helps! :)

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)