Draw the graphs of the lines below on the same grid to find the coordinates of the point of intersection. y=2x +3 y=−1/2x −2

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Plot the intercepts to graph the equation

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.