Question

Help need help on this 3 math problems !!!

8. Determine whether the function shown is constant, linear, quadratic, or none of these. m(x)=13/6

A. Linear

B. Quadratic

C. None of these
D. Constant

6. Does the following equation determine y to be a function of x?
y2 = x + 3

A. No

B. Yes

C. Only when x = 1
D. Sometimes


16. Solve the system. y=1/7x-4 x=7y+1

A. No solution

B. (7, –3)

C. (–13, –2)

D. There are an infinite number of solutions

Answer 1

8. D. Constant

6. A. No

16. A. No solution

Explanation:

8. There is no "x" on the right side of the equal sign in the function definition. There is only the constant 13/6. The function shown is constant.

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6. The equation will graph as a parabola that opens to the right. Solving for y, you get ...

y = ±√(x+3)

This is double-valued. A relation that gives two values for the same value of x is not a function.

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16. In standard form, the two equations are ...

• x -7y = 28
• x -7y = 1

These equations are "inconsistent". There are no values of x and y that can make them both be true. Thus, there is no solution.