1. If (x) = 10x + 7 and g(x) = x2 - 7x, find ( - g)(x).

My answer is

A. ( - g)(x) = x2 + 3x +7 (My answer)

B. ( - g)(x) = 10x +7

C. ( - g)(x) = -x2 + 17x +7

D. ( - g)(x) = 10x3 - 63x2 - 49x

2. Determine whether the function shown is constant, linear, quadratic, or none of these.

m(x) = -|x - 6| + 9

A. None of these

B. Quadratic (This is my estimated guess)

C. Constant

D. Linear

3. Solve the system. For Y = 1/7x - 4 and X = 7y + 1

A. (7, -3)

B. (-13, -2)

C. No solution

D. There are an infinite number of solutions.

4. Solve the system. If there's no unique solution, label the system as either dependent or inconsistent.

The equations are: 2x + y + 3z = 12

x - y + 4z = 5

-4x + 4y - 4z = -20

The options are:

A. (4, 1, 2)

B. Inconsistent system (no solution)

C. (1, 4, 2)

D. Dependent system (infinite number of solutions)

In general, I am extremely horrible at the Guass-Jordan method and linear functions.