What is the least value of y such that 3y^2 + 5y + 2 = 4?

y = 1/3, -2

So, the least value of y would be -2.

graphs that are inverses of each other are graphs where their slopes are reciprocals of each other for example say you have an original equation of y=2x. the inverse of that graph would be y=-1/2(x). also when you see a graph where the original and the inverse is graphed the angle around intersection is 90 degrees.