Find the equation of the line that contains the two given points.
A. 9y + 7x = 20
B. 7x - 9y = 20
C. 9y - 7x = 20
D. 9y - 7x = 34
E. 9y + 7x = 34
Answer: C
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Solve the problem.Select the correct statement for the definition of the limit: 
f(x) = L means that __________________
A. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
< ?.
B. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
> ?.
C. if given a number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
> ?.
D. if given any number ? > 0, there exists a number ? > 0, such that for all x,
0 < 
< ? implies 
< ?.
Assume that the demand function for a certain commodity has the form
?
?
where x is the quantity demanded, measured in units of a thousand, and p is the unit price in dollars. Suppose the quantity demanded is 7,000 (x = 7) when the unit price is $9.00 and 9,000 (x = 9) when the unit price is $7.00. Determine the demand equation.
What will be an ideal response?
Solve the problem.
Use the graph of the polynomial function f to estimate the x-intercepts and to determine the minimum degree of f.
A. -2, 0, -2; 1 B. 2, 0, -2; 1 C. -2, 0, 2; 3 D. 2, 0, 2; 2
Draw a sketch of the two graphs described, with the indicated number of points of intersection.A circle and an ellipse; two points
A. 
B. 
C. 
D. 