Compare 89x5 and 86x7 (don't use the caculator) Detail solution pls

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?