Cato's age is half the summer of her brothers age and six if cato is nine years old how old is her brother

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Bring the fraction a/a-4 to a denominator of 16-a^2