Write a quadratic function in vertex form that contains vertex (1,2) and point (-2,8)

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?