If y=2x -3, find the value of y when x = 2

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Plot the intercepts to graph the equation