For the given correspondence, write the domain and the range. Then determine whether the correspondence is a function.{(7, 2), (-6, 4), (4, -5), (7, -9)}
A. domain: {-6, 4, 7}, range: {-9, -5, 2, 4}; No, it is a not a function.
B. domain: {-6, 4, 7}, range: {-9, -5, 2, 4}; Yes, it is a function.
C. domain: {-9, -5, 2, 4}, range: {-6, 4, 7}; Yes, it is a function.
D. domain: {-9, -5, 2, 4}, range: {-6, 4, 7}; No, it is a not a function.
Answer: A
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Provide an appropriate response.Use the fact that sin-1 x = x + 
for |x| < 1 to find the series for cos-1 x.
A. 
- x + 
B. 
- x - 
C. 
- 
D. 
- x + 
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = x
A. local minimum: 
local maximum: 
inflection point: (0, 0)
B. local maximum: 
no inflection point.
C. local minimum: 
local maximum: 
inflection point: (0, 0)
D. local maximum: (0, 
)
no inflection points.
The graph shows a region of feasible solutions. Find the maximum or minimum values of the given expression.Find the maximum and minimum of 5x + 7y.
A. 50, 28 B. -20, -45 C. 45, 20 D. 30, 35
Graph the quadratic function.f(x) = x2 - 4x
A. 
B. 
C. 
D. 