According to the graph, what is the value of the constant in the equation
below?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Which ordered pair is a solution of the equation? 2x+3y=10

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)