Please help me to answer step by step. And write it down on paper.

In question 9, you can choose more than one answer.

9. Consider the following system of three equations: X + 2y + z = 0 2x + 3y + 5z = 0 olutions. 6x + 9y + 15z = 0 A unique solution. 9b The system is: X Consistent. B X Inconsistent. D X Let's try that again Dependent. A Consistent. B Independent. C Inconsistent. D14. Consider the system: Equation1 Equation2 x3y+32=5 x2y+4z=2 Let 2 = t be arbitrary. Salve Equation 1 for J: with respect to y and l. o x=5+3y3r Using your result from part a. solve Equation 2 fury with respect to r. 0 y = -3 -I Use your results from parts a and b to solve tar x with respect to 1. Enter your next step hen: 15. Consider the quadratic with equation y = ax + bx + c that passes through the points (1, 22), (6, 7) and (5, - 2). Equation 2: 36 a+ 6 b+c Equation 3: -2 25 a+ 5 b+c 15b Next subtract Equation 3 from both Equation 1 and Equation 2 to form two new equations that involve only a and b: Equation 1: atb+c 22 subtract Equation 3: 25a + 5b + c = -2 to give Equation 4: 1 a + and Equation 2: 36a + 6b + c = 7 subtract Equation 3: 25a + 5b + c = -2 to give Equation 5: at