The graph of a function f is given. Use the graph to answer the question.Use the graph of f given below to find f(20).
A. 35
B. 10
C. 20
D. 25
Answer: B
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Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 7x - 6 = 0
A. One real solution B. Two different real-number solutions C. Two different imaginary-number solutions
State the domain and range of the function.f(x) = 
A. Domain = (-?, ?); range = (0, 2)
B. Domain = (-?, ?); range = 
C. Domain = (-?, ?); range = (-?, ?)
D. Domain = (0, ?); range = (0, ?)
Answer the question.Which order of differentiation will calculate fxy faster, x first or y first?f(x, y) = x2y + 
A. x first B. y first
Find the equation of the line passing through the two points.(6, 0) and (-2, -7)
A. y = - 
x - 
B. y = 
x - 
C. y = - 
x - 
D. y = 
x - 