Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

change f(x) to y, switch x and y, and solve for y

y = √(x -4)

x = √(y - 4)

x² = y - 4

x² + 4 = y

y = x² + 4

f⁽⁻¹⁾ = x² + 4, where x ≥ 4

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answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8