Which is the value of x and y

1.    B. x = 100

2.   A. y = 80

Step-by-step explanation:

x° and 80° form a linear pair. That means that their measures add up to 180°.

x° + 80° = 180°

x = 100

y° is vertical with 80°. Vertical angles are congruent, so their measures are equal.

y = 80

step-by-step explanation:

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)