Which set of coefficients of the terms in the expansion of the binomial (x+y)^3 is correct?

the answer is a. 1 3 3 1

this is because if you do (x + y)^3 or (x + y)(x + y)(x + y) it is equal to x^3 + 3x^2y + 3xy^2 + y^3

remembering that the coefficient is what comes before the variable.

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

in total they made   333.74 your welcome : d