What are the x and y intercepts of the graphed functionality ?

How do you find the area of a triangle

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6