List and describe at least three different properties that can be used to identify minerals

I'm so close to finishing all these.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Ethan is proving that the slope between any two points on a straight line is the same. he has already proved that triangles 1 and 2 are similar. drag statements and reasons to complete the proof.