If two points on line l above have coordinates (0, A) and (2, −3), and the slope of the line is A, then what is the value of A?

  -1

Step-by-step explanation:

The slope is given by ...

  (y2 -y1)/(x2 -x1)

We want this equal to A, so we have ...

  (-3 -A)/(2 -0) = A

  -3-A = 2A . . . . . multiply by 2

  -3 = 3A . . . . . . . add A

  A = -1 . . . . . . . . . divide by 3

The value of A is -1.

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.