Identify the reflection rule on a coordinate plane that verifies that triangle a(-1,7), b(6,5), c(-2,2) and a'(-1,-7), b'(6,-5), c'(-2,-2) triangle are congruent when reflected over the x-axis.

How do i do this activity, is appreciated

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition