Answer:
y = 6 * 3ˣ
Step-by-step explanation:
y = a * bˣ
(-1 , 2): 2 = a * (b)⁻¹ = a/b a = 2b
(2 , 54) 54 = a * b² = 2b * b² = 2b³
b³ = 54/2 = 27 b = 3
a = 6
Function: y = 6 * 3ˣ
Least common denominator is 10
there are 10/10 portions in the whole circle
1/2 = 5/10
2/5 = 4/10
10/10 - 5/10 - 4/10 = 1/10
