I need correct answers here please

1.

Solve the following system of equations. If there is more than one solution, enter additional solutions with the r'or'1 button. If there is no real solution, use the \"No solution" button. Consider the circle centered at the origin and passing through the point (0, - 8). (a) Give the equation of the circle. O 0=0 X 5 (b) For each point, decide whether or not it is on the circle. Is the point on the circle? (x, V) X Yes No (15, 7) O O (0, 7) O O (-7, /15) O O (-9, 0) O OSolve the following system of equations. V = X 8x -2xty=-21 If there is more than one solution, use the "or" button. (x. V) = (10) orO No solution X 5Graph the hyperbola. 16x- - 9v = 144 :... ... :... . ... . . ...! . . .. ... .. 3. ..! . . . .;... .. .. . . . .!... . .!' 2....12 .... ... . . . . . .. . ... . . . .. i . .. . . .. 5. . .. . ... 10 3. .i.. . . . i . . . . .. .. .. . . . . i . . . . . . . . . ... . . .. ... . . . . ;. .. 5 . .. .. . . . . . .: .... ...: i . . .i ! . . .! . . . . .. ... .. :4- .. ..... ... .. . ... ...! . . . ........! ... ... ...2 . ! ...: . . . . . . . . . . .3.. . .. . . . . . . . . . ... .. . . . . -. .... .; .. . . . ! . . . .. ...14. :-12. .-10..- 5... . . .. ... .3.... 1 . . . . . . . . . KZ . .. i . ... . . . i . . . .. .. . .. ... ..:... . ... ! . . . .. ... . .. . . . . . . . . . . . . ..;. . . .. !... . ... . . . . . . . . .. . . . . .! . .. . . . 1... . . . ! . . . . . . ;. . . <.... c. : . i :. .. ... .find an equation of the ellipse that has center a major axis length and endpoint minor>