Find the measures of the labeled angles.
2x=
(81-x)= 1

Step-by-step explanation:

Given,

2x = 81 - x [Vertically opposite angles]

=> 2x + x = 81

=> 3x = 81

=> x = 81 ÷ 3

=> x = 27 (Ans)

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.