Yes, the inverse of a symmetric matrix is also symmetric.
Take the symmetric matrix A, we have:

and

This gives:

Using the properties:

and

We get:

Since

, we can perform the substitution to get:

Multiplying by

on both sides:



Proving that the inverse of a symmetric matrix is also symmetric.
Answer: y intercept is 2 and slope is 6 or 6/1
Step-by-step explanation:
The number in front of x is always the slope in a y=Mx+b equation and the other number is the y intercept
Heidi has 18 shirts
June has 4 shirts
Karen has 24 shirts
Check:
24+4+18=46
4 times 6= 24