Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y. 7x + y = 4-14x - 2y = -8
A. no solution
B. (x, -7x + 4) or 
C. (x, 7x + 4) or 
D. 
or (y, -7y + 4)
Answer: B
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For the function f whose graph is given, determine the limit.Find
f(x).
A. 2
B. does not exist
C. 
D. -1
Provide an appropriate response.Find an equation for the tangent to the curve y = 
at the point (1, 4).
A. y = 0 B. y = 4 C. y = x + 4 D. y = 4x
Find the domain and range.f(x) = (x + 5)2 + 6
A. Domain: All real numbers; range: y > -6 B. Domain: x > 6; range: All real numbers C. Domain: x > -6; range: All real numbers D. Domain: All real numbers; range: y ? 6
For the given functions f and g, find the requested function and state its domain.f(x) = 9x + 1; g(x) = 6x + 3Find f ? g.
A. (f ? g)(x) = 54x2 + 33x + 3; all real numbers B. (f ? g)(x) = 54x2 + 3; {x|x ? 3} C. (f ? g)(x) = 15x2 + 33x + 4; all real numbers D. (f ? g)(x) = 54x2 + 9x + 3; {x|x ? 3}