If R= {(1,2), (3,4), (5,6), (8,9)} find the domain and range of R a. Find value of X and Y.​

Domain:

Range:

We are given the set of ordered pairs: . The Domain is just the set containing all the values of each ordered pair of . Recall that in the ordered pair , is the value. In set , we can see that the values are .

For the Range, it is just the set containing all the values of each ordered pair of . Recall that in the ordered pair , is the value. In set , we can see that the values are .

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: