Find values of x and y such that both fx(x,y) = 0 and fy(x,y) = 0.f(x,y) = 12xy - 4x - 4y + 9
A. x = 3, y = 3
B. x = 
, y = 
C. x = -3, y = -3
D. x = - 
, y = - 
Answer: B
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Given the graph of f, find any values of x at which f ' is not defined.
A. x = 2 B. x = 1, 2, 3 C. x = 1, 3 D. Defined for all values of x
Provide an appropriate response.The speed you must travel for a given amount of time depends on the distance you must cover.(a)Write a function r(d) for the speed if the time is 5 hours and the distance covered is d.(b)What is the domain of this function out of context?(c)What is the domain of this function in the given context?(d)Find r(x), r
and r
,.(e)What happens to the speed if the distance is reduced (divided) by a constant c? Describe using an equation.
What will be an ideal response?
Find the domain, the range, and any intercepts.
A. domain: [0, ?); range: [3, ?); intercept: (0, 3) B. domain: (-?, ?); range: [3, ?); intercept: (0, 3) C. domain: [0, ?); range: [0, ?); intercept: (0, 3) D. domain: [0, ?); range: (-?, ?); intercept: (3, 0)
Graph the system of inequalities and the points of intersection of the graphs. Label the points of intersection with their coordinates.y ? x2 - 5y + 4x < 27 
A. 
B. 
C. 
D. 