For all questions, no work is needed. Only the solutions asap, thank you:

1.

Solve the system by the method of elimination. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, express x and y in terms of the real number a.) (x, y) XFind the point (x, y) on the unit circle that corresponds to the real number t. t = 7x/4 (x, y ) =Find the point (x, y) on the unit circle that corresponds to the real number t. t = 2x/3 (x, y ) =