9 mile... you didn't really give enough info.
Answer:
False
Step-by-step explanation:
At any X point, there should be only one Y point. So at X=1, function should intercept Y axis only at a single point, whereas this graph intercepts it two times. It is not a function, but it is a graph.
Answer:
Option A. 
Step-by-step explanation:
step 1
Find the slope of the line parallel to the given line
we have
The slope of the given line is
Remember that
If two lines are parallel, then their slopes are equal
therefore
The slope of the line parallel to the given line is also
step 2
Find the equation of the line parallel to the given line in slope intercept form
we have
substitute and solve for b
substitute
40. a) yes, pythagorus' equation says A^2 + B^2 =C^2, If A=3, and B=4, then C would be 5 (the square root of 25 as 9+16=25). 3,4, and 5 are integers/rational so the perimeter would also be rational.
b) yes, if A=3, B=pi, C would be a combination of an irrational number making it irrational as well.
41. This is a special triangle, the sides are 1,2, and sqrt(3) (2 is the hypotenuse). The sqrt(3) is 1.732050808...., it appears to start repeating which means it is rational. Therefore the perimeter would be rational. Use this argument for why it is not irrational.
