Consider function f.
f(x) = V7x - 21
Place the steps for finding f-1 (x) in the correct order.
Inverses of Functions: Mastery Test
7x2 + 3 = f(x), where x ≥ 0
22 + 21 = 7ข
722+3 = y
7(x2 - 21) = f- (x), where x ≥ 0
2 = V7y - 21
y = V7x - 21
(x + 21)2 = 7ญ
x~ = 7y - 21