Answer:
Is already in standard form.
Leading Coefficient: -1
Explanation:
Standard form denotes that the degrees must order form highest to lowest left to right. We see that our degrees are 3, 2, 1 and 0, so it is already in standard form.
Leading coefficient is the number in front of the highest degree term. We see that our highest degree term is y³. The number multiplied to it/in front of it is a -, or a -1, so our leading coefficient is -1.