Determine the direction that this parabola opens y=2x^2-4x-6 down or up

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons