For this case we must find the inverse of the following function:

Then, we follow the steps:
We change
by y:

We exchange the variables:

We clear the variable "y":

We change y for 

Answer:

Answer:

Step-by-step explanation:
In order to find the side mentioned (IJ), we need to use SOH CAH TOA.
SOH CAH TOA is an acronym to help us remember what sin, cos, and tan mean. It stands for:
Sin = Opposite / Hypotenuse
Cosine = Adjacent / Hypotenuse
Tan = Opposite / Adjacent
Since we know the measure of angle K (42) and we know one of the sides, we can use this to find the missing length.
Since the side given to us is the hypotenuse, and we're looking for the side opposite of the angle (IJ), the only possible one to use would be SIN as it includes Opposite and Hypotenuse.
Our equation is now this: 
Let's now solve for x.
Therefore, the length of IJ will be around 2.01.
Hope this helped!
Answer:
yes, it is (3,2)
Step-by-step explanation:
quadrant
1st (-,+)
2nd (+,+)
3rd (-,-)
4th (+,-)