What is the recursive rule for the sequence? 1.2, 0.4, −0.4, −1.2, −2, …

an=a n−1 + 0.8 , where a1=1.2
an=a n+1 + 0.8 , where ​ a1=1.2
an=a n+1 − 0.8 , where ​ a1=1.2
an=a n−1 − 0.8 , where ​ a1=1.2

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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.