Which of the following relations represents a function? A {(-1,2), (-6,3), (-6,4), (5,6)}

B {(1,2), (2,3), (3,4), (2,6)}

C {(1,2), (2,3), (3,4), (5,6)}

D {(1,2), (2,3), (1,3), (-5,5)}

Given abcd ac=38 and ae=3x+4 find the value of x

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142