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# "Y as a Function of X", Quadratic Equation, Maximum, Minimum and Types of Lines

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1. Which set of ordered pairs(x,y) represents y as a function of x?
A. (2,-8),(1,6),(1,2),(6,1)
B. 2,-8,1,6
C. (2,-8),(-8,2),(6,6)
D.(2,-8),(-8,1),(2,6)

2. Evaluate the function at the specified value of the independent variable and simplify f(x)=3x squared-square root2x
a. 22.757 b. 24.551 c .21 d. 23.536

3. Find the maximum or minimum value of the quadratic function f(x)=squared+10x-19. State whether this value is a maximum or minimum:
A.-44;max b.-44;mini c.69;max d.69; mini

4. Determine whether the graph of the equation are parallel, perpendicular, or neither
-8x-7y=8 and 6x-2y=8
a.parallel b.perpendicular c.neither

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1.which set of ordered pairs(x,y) represents y as a function of x