Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = x2 - 9
A. vertex: (-9, 0)
axis of symmetry: x = -9
B. vertex: (0, 9)
axis of symmetry: x = 0
C. vertex: (0, -9)
axis of symmetry: x = 0
D. vertex: (0, -9)
axis of symmetry: x = 0 
Answer: D
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Provide an appropriate response.Which one is correct, and which one is wrong? Give reasons for your answers.(a) src="https://sciemce.com/media/4/ppg__tttt0611191208__f1q34g7.jpg" style="vertical-align: -21.0px;" /> = 
= 
= 
(b) 
= 0
What will be an ideal response?
Solve the problem.The linear equation y = 443x + 3420 provides an approximation of the annual cost (in dollars) of health insurance for a family of three, where 
represents 2011, 
represents 2012, and so on. Write an equation that yields the same y-values when the exact year number is entered.
A. y = 443(2010 - x) + 3420 B. y = 443(2011 - x) + 3420 C. y = 443(x - 2010) + 3420 D. y = 443(x - 2011) + 3420
Simplify by finding the absolute value.-?-6?
A. 0 B. 6 C. -6 D. 12
Determine whether the polynomial function is cubic or quartic.
A. Cubic B. Quartic