What are the values of X?

37, 49

Step-by-step explanation:

Divide 74 by two to get the first x. 74 / 2 = 37

Subtract 77 from 126 to get the second x. 126 - 77 = 49

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

i believe that the answer is

b. y-1=-2(x-4)

hope this !