Please i need to check this and to see the answers

What can be said about the relationship between triangles and circles? check all that apply. a) many circles can be inscribed in a given triangle b) exactly one triangle can be inscribed in a given circle c) exactly one circle can be inscribed in a given triangle d) many triangular shapes can be circumscribed about a given circle

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x