Which set of ordered pairs does NOT represent y as a function of x? a {(9, 6), (10, 6), (11, 6), (12, 6)}
b {(1, 0), (2, 3), (4, 5), (2, 6)}
c {(4, 5), (5, 6), (6, 7), (7, 8)}
d {(1, 10), (2, 5), (-1, 5), (-2, 10)}

A

Step-by-step explanation:

the x is repeated, in order to be a function each input needs to have exactly one output

mr. graef told us it is 13 pints

step-by-step explanation:

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.