Answer:
10
Step-by-step explanation:
a^2 + b^2 = c^2
6^2 + 8^2 = c^2
36+64 = square root of 100
square root of 100 is 10
1/2(2x+6)
Substitute the one half to both of the numbers inside the parentheses.
1/2*2 is one which would just be x
1/2*6 is three
X+3
I think that the interval that is always increasing is interval number 1.
The domain is the x-values used by the graph, so you want to see how your graph lines up with respect to the x-axis.
This graph starts out with an x-value of 2 (although it doesn't really use 2, since it's an open circle) and then continues to the right forever.
The domain is x > –2.