Find an equation of the level curve of f(x, y) = v x2 + y2 that contains the point (4, 5). Need Help? Read It Watch It 7. [-/1 Points] DETAILS TANAPMATH7 12.1.032.MI. MY NOTES IQs The IQ (intelligence quotient) of a person whose mental age is m years and whose chronological age is c years is defined as f(m, c) = 100m C What is the IQ of a 5-year-old child who has a mental age of 6 years? (Round your answer to the nearest whole number.)