1) x=
square root ({15}^{2} - {9}^{2} )
all the others are the same method, just remember
the horizontal line^2 + the vertical line ^2 is equals to the line opposite the right angle^2
You have to circle 4 equations to answer like group -2 3 and -1 and 6
Answer is (a.)
No it is not a function fails the vertical line test .
The awnser is c (p6+q) +8
Answer: (-2,2)
Explanation: I plugged it into a graphing calc!